"Intel 82865G Graphics Controller" Doesn't Work?

I'm running Windows 7 Ultimate (Build 7000) on an lenovo pc (Intel Pentium 4 - 2.8GHz, 2.00 GB RAM). my pc's actual graphics card is "Intel 82865G Graphics Controller" but windows 7 loads it as "standard VGA graphics card" which gives me a very very bad video quality but computer works great. HOWEVER,when i update video graphics back to my "Intel 82865G Graphics Controller" & play any video, the video quality is excellent & direct 3d & hardware acceleration starts working contrary to "standard VGA graphics card" but gives major computer operation problems. For e.g., As soon as i resize my VLC interface or run any other media players (like powerdvd or windows media players etc), the computer either gets stuck/hung or it shows a blue screen message saying "disable bios memory such as caching or shadowing" OR "page_fault_in_nonpaged_area" & lots of other explorer based problems.i tried changing various 3d settings in opengl as well, but in vain.