http://www.windows-now.com/blogs/chris123nt/archive/2006/10/09/Fix-Aero-Glass-on-Low-end-DX9-Cards.aspx \\ ---- original, en anglais : \\ Fix Aero Glass on Low end DX9 Cards \\ Some people with low end DX9 cards (Geforce 5x00 series and ATI 9x00 series) have been reporting issues of Aero Glass not enabling itself despite getting a system rating more than good enough to run Aero Glass. This is a known issue in RC2 and is on the board to be fixed in RTM. But for now here's the workaround that I spotted on AeroXP (Posted by Colonel.Cool). \\ 1. Ensure that you have the following registry value set to : \\ HKCU\Software\Microsoft\Windows\DWM\Composition set to 1 (32-bit DWORD) \\ HKCU\Software\Microsoft\Windows\DWM\CompositionPolicy set to 2 (32-bit DWORD) \\ 2. Restart DWM by opening a command prompt with administrative privileges : \\ - Type 'net stop uxsms' - Then 'net start uxsms' \\ After doing this you should have Glass, enjoy! \\ NOTE: Do NOT try this on a non-DX9 card. This is for people who should be getting Glass only. \\ ---- \\ simplifié en francais : \\ pour une carte graphique supportant dirext X 9 (même pas puissante), activation d'aero sous vista : \\ regedit --> '' HKCU\Software\Microsoft\Windows\DWM\Composition = 1 HKCU\Software\Microsoft\Windows\DWM\CompositionPolicy = 2 '' redémarrer