Hve bought Dell mini 1012 with having the following tech specs..
Hard disk- 320GB
Resolution-1024 x 640
Integrated intel GMA 3150.
I have upgraded my Dell mini operating system to windows 7 ultimate 64 bit and installed all the drivers downloaded from Dell website(U can install every driver from dells except that of audio and video) except that of graphic card which i had to download 64 bit version from intels website. surprisingly the system ran flawlessly and much more faster than it was during running of 32 bit windows 7. Still there was problem running 720p HD videos. In course of experimenting with my new system i installed 64bit version of ubuntu 10.04 (Dual boot) and installed vlc player in it. Now there is no problem for me watching 720P HD videos at all. Even it is running most of 1080p videos flawlessly