Pat,

The relevant terminology is:

User-Mode means VNC Server running as a normal application on the computer
you are trying to access remotely.
Service-Mode means VNC-Server running as a system service on the computer
you are trying to access remotely.

The VNC viewer is simply called VNC Viewer, and runs on the viewing
computer.

Regards,

Wez @ RealVNC Ltd.


> -----Original Message-----
> From: Boland Pat-A19945 [mailto:[EMAIL PROTECTED] 
> Sent: 26 August 2005 16:09
> To: James Weatherall; [email protected]
> Subject: RE: Blank Screen Problem
> 
> James:
> 
> Thanks so much for the reply. Sorry, resetting the system did mean
> shutting down the VNC server side  from a user account and restarting
> it. Not to confuse the situation I am actually running both  
> the server
> and client (from time to time) but it is the user-mode (client?)  I am
> having the problem with.
> 
> At the remote PC (VNC server side) VNC is shut down, then restarted.
> Either manually by someone in that location or via the service-mode
> (which always works). Once it is back up again there is no 
> blank screen
> problem (user mode) on the local side until the user closes 
> the session
> via the firewall . Then if they try to reestablish a proper connection
> occurs but a blank screen ensues  via the firewall. 
> Connecting directly
> without the firewall the connection establishes perfectly every time. 
> 
> Let me go off in a different direction: What firewall configuration
> ports need to be open, and what packet size should be used? What
> settings on the client side interact with firewall if any. Is there a
> timer on ports for firewall?
> 
> Regards - Pat 
> 
> -----Original Message-----
> From: James Weatherall [mailto:[EMAIL PROTECTED] 
> Sent: Friday, August 26, 2005 5:53 AM
> To: Boland Pat-A19945; [email protected]
> Subject: RE: Blank Screen Problem
> 
> Pat,
> 
> I'm afraid I can't really understand the description of the 
> problem that
> you provide here.  You refer to resetting the system, but 
> then describe
> shutting down a User-Mode VNC Server and restarting it, as 
> far as I can
> tell.  Which do you actually mean?  Are you really running 
> VNC Server in
> User-Mode, or in Service-Mode?  I also don't understand 
> "After that time
> period however, all you get is a blank screen, if you shut down the
> local PC and try to establish another session, until you reset the
> remote server end again. " at all - if you've shut down the PC then it
> is off and will not respond to connection attempts at all.
> 
> Can you explain further?
> 
> Regards,
> 
> Wez @ RealVNC Ltd.
>  
> 
> > -----Original Message-----
> > From: Boland Pat-A19945 [mailto:[EMAIL PROTECTED]
> > Sent: 18 August 2005 18:31
> > To: Boland Pat-A19945; James Weatherall; [email protected]
> > Subject: RE: Blank Screen Problem
> > 
> > James:
> >     I tried loading different releases of VNC on both the remote
> server 
> > side and the local PC, I have shut off fast user switching nothing 
> > helps this blank screen problem.  When the system is reset at the 
> > remote server side (shut down VNC server application and bring up
> > again) the full screen appears and remains up for as long 
> as the local
> 
> > server has an established session.  If the local session is 
> shutdown 
> > within 5 maybe 10 minutes of the reset, you will not see that blank 
> > screen.  After that time period however, all you get is a blank 
> > screen, if you shut down the local PC and try to establish another 
> > session, until you reset the remote server end again.
> > 
> >     Help; Thanks - Pat
> > 
> > -----Original Message-----
> > From: Boland Pat-A19945
> > Sent: Tuesday, August 09, 2005 1:09 PM
> > To: 'James Weatherall'; [email protected]
> > Subject: RE: True color and extremely slow speed
> > 
> >  James:
> >     I get the frame (boarder) where the remote server is suppose to 
> > appear, but instead of the remote PC blue screen and icons - or any 
> > application that would be running, I get "black" which I call blank 
> > inside the viewer window. I hope that answers your question.
> >     Regards - Pat
> > 
> > -----Original Message-----
> > From: James Weatherall [mailto:[EMAIL PROTECTED]
> > Sent: Tuesday, August 09, 2005 12:12 PM
> > To: Boland Pat-A19945; [email protected]
> > Subject: RE: True color and extremely slow speed
> > 
> > Pat,
> > 
> > Can you explain what you mean by "blank screen"?
> > 
> > Regards,
> > 
> > Wez @ RealVNC Ltd.
> > 
> > 
> > > -----Original Message-----
> > > From: Boland Pat-A19945 [mailto:[EMAIL PROTECTED]
> > > Sent: 09 August 2005 17:27
> > > To: James Weatherall; [email protected]
> > > Subject: RE: True color and extremely slow speed
> > > 
> > > James:
> > >   Yes, I wondered if that went anywhere. Attached is the email I 
> > > originally sent. I don't know if Fast user switching is on.  I 
> > > originally thought it was a VNC option, which I did not see.
> > > I'll look
> > > at it on the server.
> > > 
> > >   Thanks for responding to me.  -Pat
> > > 
> > >  
> > > 
> > > -----Original Message-----
> > > From: James Weatherall [mailto:[EMAIL PROTECTED]
> > > Sent: Tuesday, August 09, 2005 11:14 AM
> > > To: Boland Pat-A19945; [email protected]
> > > Subject: RE: True color and extremely slow speed
> > > 
> > > Pat,
> > > 
> > > I'm afraid I can't find any record of you having asked this
> > question
> > > before, in our archives.
> > > 
> > > Can you explain what you mean by "blank screen"?
> > > 
> > > Are you using Fast User Switching and/or Remote Desktop on the XP 
> > > machine that is running server?
> > > 
> > > Regards,
> > > 
> > > Wez @ RealVNC Ltd.
> > > 
> > > 
> > > > -----Original Message-----
> > > > From: Boland Pat-A19945 [mailto:[EMAIL PROTECTED]
> > > > Sent: 09 August 2005 17:04
> > > > To: James Weatherall; John Mao; [email protected]
> > > > Subject: RE: True color and extremely slow speed
> > > > 
> > > > James:
> > > >         I've asked this question before, but still have 
> this lingering 
> > > > problem. I am running VNC on and XP server.  When I 
> bring up the 
> > > > viewer on either an XP desktop or Win2000 desktop I get a blank 
> > > > screen.
> > > > The connection goes through, but I just get a blank screen.  
> > > > When I shut
> > > > down the VNC server side and bring it up again, it works
> > fine, but
> > > > once I close the session, I can be assured of a blank
> > screen on the
> > > > next desktop connection.  I would leave it on all the time
> > > but other
> > > > desktops have to use it as well.  Since the server is 2000
> > > miles away
> > > > shutting down and restarting the server side is not a good work 
> > > > around.
> > > > 
> > > >         Any suggestions?
> > > > 
> > > >         Thanks - Pat Boland
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