In game flicker - windows 7

[daspiffy]

I am trying to mod a plaza to include a subway station.  I copied all the exemplars from the subway station (expect Demand created and item order) that were not included in the plaza3 into the plaza3 duplicate, and added the missing occupant groups.  I started simcity 4 and was able to plop the new plaza; however, if I selected the wind power station the screen began flickering (though it subsided when I clicked something else).  I was able to put down RCI, coal plant, road, and subway and begin running on speed 3, but after about 2 or 3 months the game stopped and the screen began flickering fast (I had to ctrl-alt-delete).  I suspect that this coincided with someone trying to use the subway for the first time, but I am not sure what I am doing wrong.  Any pointers?

I am using Windows 7 with sc4 tools in XP sp 3 compatibility mode, no themes, desktop composition, or scaling on high DPI settings.  Simcity 4 is being run in xp sp 2 compatibility mode.




Changing from hardware rendering to software rendering solved the problem.