I have 4 systems that run Linux RedHat, XP, Vista, and 7 Ultimate. While I had many issues with Vista, I haven't had any with 7 yet. I'll stress yet, but I've lasted longer without problems then I did with Vista. Everyone touts the stability of XP, but remember, XP had ALOT of issues right out of the box too. The reason it's so stable right now is for the fact that it's been around for a while. Also Mojavi = Vista. It was a codename that Microsoft used for Vista for a "man on the street" ad campaign a while back. They invited strangers to check out a "new" OS destined to replace XP, everyone loved it (what can ya expect from a 2 minute demo). Dump the Vista, go to 7, you don't need Pro unless your using the system for business.