I currently have a Intel Extreme Tech Processor @ 3.73 Ghz on a Intel 925XE Board (aka Dell XPS Gen 4). It's running Vista without any issues; better than I expected actually! what I would like to do is upgrade it to a Dual Core processor. Is it even possible to go from a Single Core to Dual Core? Does the BIOS need to be told, or would it "see" it on its own?? Any help would be appreciated!