Non-Aero Glass capable Vista systems get Vista Movie Maker
Microsoft initially overlooked something when they released Vista (besides the security flaws and missing features). Vista includes a new version of Windows Movie Maker, for all intents and purposes should be called Vista Movie Maker. The problem is GottaBeMobile discovered
this version of Movie Maker
is not compatible with systems that have integrated graphics not capable of running Aero Glass, the new GUI (graphical user interface) in Vista.
Full article here: Source