I was given a Dell computer (Dimension XPS B866r) PIII - 866 with 128 MB RDRAM. The previous owner wanted to install Windows XP Home on it. He bought the upgrade and started to install it. It kept crapping out on him halting with errors during the install. The comp originally shipped with Win98. Long story short, I got the computer to see if I could get XP installed on it. I let XP format the drive NTFS and started the install. It failed with errors and a hex dump to different addresses each time. I tried installing Win 2K OEM with similiar results. I tried both NTFS and FAT32. I gave up on XP and Win2K and installed Win98 and it appears fine. Any ideas??? Could it be Dell has special hardware that would preclude the installation of XP??? I don't have any spare sticks of RDRAM to try different memory. Could it be RAM???