HI, as topic, and before buying... did anybody tried it with this OS and does the game works perfectly?
Thanks in advance

I only played a few minutes, but had no problems.

Works fine here, completed several mission in the ARM campaign, and a couple skirmishes.
Slight flickering immediately after the game changes resolutions, nothing bad, no tinkering required on my part.

I concur with the others, it works fine except for slight flickering. Usually happens when Skype or MSN does the 'User logged in' notifications, but also whenever I receive a message on Steam, so I turn that off when I play. :P

Thanks guys, that was helpful

Another confirmation. Works fine for me.

I have tried it with 2 different 64bit windows 7 systems, the one with an intel CPU and ATI graphic card worked fine, but I had some issues with the machine with an AMD cpu + Nvidia GPU (colors would randomly invert). but it worked fine when played on a VM on the AMD machine (still more than fast enough to enjoy).

Works excellent w/ my Netbook even with crappy Intel's GMA950 intergrated . I'm only running Windows 7 Starter (32-Bit)

I get a lot of flickering, even when not running too much in the background, seems more related to the game rendering the image than any programs, since I get flickers all over the screen, worst around heavily animated stuff like metal extractors or wind turbines.
Very much playable though, it even supports my 16:10 monitor's native resolution, 1440x900.
Running Windows 7 Professional 64-bit on a desktop with an integrated ATI Radeon HD4200

I get a small flicker on starting a map, but after that the game is smooth as can be. Love it.

Works fine for me. Slight screen flicker on map startup...but it stops after a few sec.