I have a Sony Vaio PCG-F590 notebook which I am trying to upgrade to Win XP Pro. It currently has Win98 on it. I upgraded it once a while back without a hitch, but now I get to the point where it's "Installing Devices" and I get the BAD_POOL_CALLER blue screen of death. I've followed Sony's upgrade instructions exactly, I've tried a clean install, I've run diagnostics on the memory. The only thing I can think of that may be different this time than the first time I installed XP is that I believe the modem got fried in a power outage. Could the be causing the error? Is there any way I can check?