I have a Dell Optiplex GX270 and I put Vista Ultimate on it and the drivers won't load.My XP drivers won't work on it and I have looked everywhere for drivers.I checked Dell and Intel and a google search but nothing.The one I need the most is for graphics.I can't change the screen and it says 16 bit.I have plenty of RAM(1024mb)and a large hard drive.I know there has to be a driver somewhere for a Dell Optiplex GX270 that has Vista.I can't be the only one that has tried to put Vista on one.Please help