I reformatted an older Dell earlier and now I'm having issues with the RAM. It had two sticks of 128MB DDR RAM (PC3200) and I tried adding a single stick of 256MB of the same type. After the computer recognized that there was a change in physical memory I went to load XP and I got a fast blue screen. Now, the OS will not load at all even with the original memory configuration (128x2) reinstalled. I hate Dells, have I mentioned that? Also, when i try to boot into Safe Mode it stops loading drivers at agp440.sys if that's any indication.