Graphic issue in CS (and other JTS titles)

[Solyom2]

Hello!

In the days, I discovered when I have the visible hexes mode turned on, or I play in a night scenario, so there are hexes with some greyish fog, when I'm scrolling, the game screens starts to "vibrating". It happens only in the 2D or 3D zoom out views.

I checked a few other JTS titles (napoleonic, squad battles), they have the same problems, the only difference is the view mode where it happens.

I guess it's related to the GPU driver, because I didn't have this problem before on the same computer.  Have you had the same experience, especially with AMD cards?
I use Win7 64 bit.