I'm using build 7100. My video card is not compatible with WDDM. (SiS 730) But some features like Aero Shake and Aero Peek, probably does not need a WDDM compatible video card. Some registry hacks like "HKCU\Software\Microsoft\Windows\DWM\UseMachineCheck" are not working in Windows 7 (Build 7100). There is some method to force enable Aero in my video card? (Not Aero Glass and other "advanced" effects, just Aero Shake/Peek or colorized taskbar.) PS: I already installed all drivers. PSÃ‚Â²: English isn't my native language, sorry about any mistakes.