Thank you! It works for me too! I tried different compability modes but not 
this option.

--- In [email protected], "ben_noz91" <cal...@...> wrote:
>
> 
> 
> I had the same issue on my brand new laptop on Windows 7 64 bits.
> 
> The "interf_u.brd" took many seconds to display or refresh. We can see the 
> lines draw one by one.
> I tried different binary versions, with the same problem 
> (KiCad-2010-03-14-SVN2456, KiCad-2009-02-16-final, kicad-20080825).
> 
> Like you I tried on virtual machines: XP and Linux 64. And here, despite of 
> virtualization overhead, the same test is responding instantly (so for me 
> this is at least 50 times faster!)!
> 
> After this I found a very simple "turnaround" solution: go with explorer to 
> pcbnew.exe, click "properties", and check "unactivate desktop composition" 
> under the compatibility tab.
> With this the speed becomes from unusable to acceptable, but not as smart as 
> under the linux or XP VM.
> 
> So this acts as a conflict with the new display system of vista/win7.
> 
> Hoping this little information might help you and other people that will face 
> this problem.
> 
> Greetings 
> Ben.
> 
> 
> --- In [email protected], "o00batman00o" <anthony.siegrist@> wrote:
> >
> > Hello
> > 
> > Since I upgraded to windows 7, I can't use pcbnew beacause the screen 
> > refresh is amazing slow. I can see dot grid showing up from left to right. 
> > I notice the same behavior on all PC running Windows Vista or 7.
> > 
> > My temporary solution is to run Kicad under Ubuntu via VirtualBox. By this 
> > way refreshing rate is in my opinion 10 times faster.
> > 
> > Does someone noticed the same issue? Is there a solution ?
> >
>


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