Wonder how much it would help out to run Linux thru a VM (on a XP os)
From my reading, they often do the reverse. They have Linux as the base O/S, then spawn Windows virtual machines to donate to F@H.
At one point, Linux was the favored O/S by the F@H crew, then in the last year, the support was broke. It can be made to work, but it's no longer easy.
If you want to fold with Linux, you are best off starting with a 64-bit, non-Ubuntu version. My problem is my Linux machines are 32-bit Ubuntu, which is the easiest, and perhaps the most stable Linux version with a GUI. It's more "Windows" than Windows is. If you can use Win, you can run Ubuntu. Besides it being free, and no Genuine Windows Advantage (Microsoft's spy-on-your-customer malware), and loading faster with fewer special drivers, it comes with most the software you need for a typical desktop built-in.
That being said, I only have 3 computers running Linux, and none of them are folding.