I recently bought Geneforge 1-5 through Good Old Games and found that the frame rate was very choppy unless opening a container, getting items, etc. Launching in compatibility mode for Windows XP SP3 made it considerably smoother but the game is still choppy only when the game displays certain text while I'm playing, cutting down to what I would guess is 10 or less frames per second. Edit: The frame rate otherwise is as smooth as can be.
Small dialog fragments do NOT correlate to the problem: http://postimage.org/image/ej1q2au9z/
These, however, seem to have a 1 to 1 correlation with the frame rate slowing down: http://s15.postimage.org/grkhxdqrv/gf02.png
System information:
Windows 7 x64 SP 1
Intel Core 2 Quad 2.4GHz
4GB ram
Radeon HD 4870 (drivers updated by Steam)
I have also had a choppy framerate problem with Baldur's Gate 2 on this machine, and people described the issue as a software/hardware rendering problem, but forcing software rendering did not help me in this case. In the end I gave up. I know not whether the issues relate.
Any help is greatly appreciated.