Is the card an ATI card, I have heard a rumor about the ATI cards. Just a
hint to try and track down the problem
regards
Mark Pollard
Senior Consultant Information Services
DRYDEN TECHNOLOGIES
Ph: 61 (2) 9542-2808
Fax: 61 (2) 9542-2806
Web: www.drydentech.com <http://www.drydentech.com>
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-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of
[EMAIL PROTECTED]
Sent: Thursday, 26 October 2000 5:46 PM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Vedr.: Re: MI-L MI Screen redraw "Fragmentation"
Hi Mark,
We've seen this problem too, and think it's a conflict between certain
graphics cards and MapInfo Pro's internal map redraw optimization routine.
A work-around is to disable Pro's optimization, and that's done in the
registry by setting the key (adding it, if it's not there)
"HKEY_LOCAL_MACHINE/Software/MapInfo/MapInfo/Common/OffScreenBitmap" to 0
(maybe string "0"). And restart Pro.
The redraw will be slower, but you won't have any fragmentation problems.
I don't know why it happens on some machines. Maybe the graphic card's too
fast, or maybe it's not 100% complaint to specs.
If anyone's got an idea as to the core of the problem, I'd be delighted to
know too.
Best regards
Lars Nielsen
**********************************************************
Lars Nielsen [EMAIL PROTECTED]
Development Manager, MapXtreme iGIS Specialist
Kampsax Geoplan Odense http://www.mapinfo.dk
Authorized MapInfo Distributor in Denmark & Norway
Address: Rugaardsvej 55, DK-5000 Odense C
Telephone: +45 6313-5000 Facsimile +45 6313-5090
**********************************************************
"Veitch Lister Consulting"
<[EMAIL PROTECTED]> Til: "Jason
McMahan" <[EMAIL PROTECTED]>, "MapInfo-L"
Sendt af:
<[EMAIL PROTECTED]>
[EMAIL PROTECTED] cc:
onsmag.com Vedr.: Re: MI-L MI
Screen redraw "Fragmentation"
26-10-00 21:11
Besvar venligst til "Veitch
Lister Consulting"
This has long been an intermittant problem for us for years (I assume it is
the same problem - a panel at the edge of the screen shows the old view
while the rest shows the new view). I assume it is some incompatibility
between MapInfo and the video card - we have had three different
machines/cards over the eyars and the problem still pops up now and then. I
haven't been able to work out what the problem is or what triggers it, but
it does seem to happen more when you have lots of layers in view.
We are still using 4.1.2 so I don't know if this is a problem with later
versions.
If you find how to eliminate it, please let me know.
Regards
Mark Knudsen
----- Original Message -----
From: Jason McMahan <[EMAIL PROTECTED]>
To: MapInfo-L <[EMAIL PROTECTED]>
Sent: Wednesday, October 25, 2000 3:43 PM
Subject: MI-L MI Screen redraw "Fragmentation"
> Dear List-
>
> I've had a problem for a long time, and I've finally decided to tackle
it.
>
> Oftentimes my map window, while in the process of moving around with the
> hand tool, will do what I can best describe as "fragment." It's like it
> leaves little pieces of the old map window in place after I have moved to
a
> new field of view. A simple window>redraw will set everything right
again,
> but often I work with very detailed maps and redraw time can be minutes.
>
> Anyone familiar with this problem? Anyone know how to fix it? I can
> provide a screen-capture showing the problem.
>
> Any help at all is appreciated!
>
> -Jason McMahan
>
>
>
>
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