Fanboys amuse me.
Especially Microsoft fanboys, ready to take it up the arse for their lord and master.
Microsoft "security" is a joke, from start to Vista. Their latest version of "security" simply allows them to say "it's not our fault", when in fact they are selling their signing service as a guarantee that they have, in fact, inspected and approved anything they have signed. Yes, ATI screwed up. But Microsoft is screwing up even more by having an "operating system" that allows drivers access to areas they should not have access to. So yes, it's Microsofts fault for writing a crappy operating system. Again. Their whole "operating system" is a sad, sad joke perpetrated on a world of people who have been brainwashed into accepting truly crappy software on a daily basis.
As for Macs - they're a little better, and it's what I currently run for various reasons, but they aren't that much better. I'm still waiting for proper security on a computer. You know, something like Multics had by 1969 or 1971 or thereabouts. Surely it can't take that long to reinvent the basics?
All hardware sucks. All software sucks. The rest is personal preference. But come ON folks, there are still some things that suck the most of all choices, and we're getting a front row seat here on why it sucks.