Is it possible to replace XP x64 with the old 32 bit version. I bought a new dell precision 380 with x64 and eveything is great, except one must have application. (A soil erosion app written years ago by people now dead) I tried to install XP Pro but it fails and gives a BSOD. I assume it depends on your system, but am not sure. My processor is a Pentium D 830.