Is anyone seeing more than 2GB of RAM under Windows? Does anyone know what is causing this restriction? Windows (even a normal 32bit XP system) can see up to 4GB of RAM. I have about 8 PCs here all running happily with 3GB installed so I don't understand why the Mac Pro would only see 2GB. This issue is the only thing holding me back from getting a Mac Pro right now as a Windows system with only 2GB of RAM is next to useless for me. Any ideas???