Hi, I got a problem with my computer. It keeps on freezing up every now and then for no reason when I leave it be for a few hours. It's not a complete freeze because when I click on the start menu, desktop icons, or the taskbar items i get the message: "Windows can not access the specified device, path, or file. You may not have the appropriate permissions to access the item." I'm running winxp sp2, automatic login aka im the adminstrator, amd athlon 64 dual processor 4200, 2gb ram. The only way to fix this is to reset my computer. Two months ago I replaced a power supply and a hard drive and then the above problem started. Otherwise everything is running just fine. Anybody have an idea as to what my problem might be? Thanks for anybody's help to this.