64bit or bustFollow

That is actually the first time I have ever heard of that my self.

Your best bet would be to get onto the tech support site and ask.

Here is one you could try, The support forum

http://forums.station.sony.com/eq2/forums/list.m?category_id=45

And this is another, The FAQ page.

http://forums.station.sony.com/eq2/forums/show.m?forum_id=2

-breaks out the torches and the pitchforks-

Vista, in my opinion, is not what you want to be running with an MMO of any kind yet.

I am actually going to try and find a copy of windows XP that will allow me to use more ram than I can now, and that the basic copy of windows Vista allows [which is roughly the same amount]

Runs perfect on vista64. Just keep in mind with vista you need a little more ram but with vista 64 and ram being cheap you can have 12gb+ of ram for not a lot of money. I would suggest if your running vista64 you have at the very least 4gb ram.

Hubby runs it just fine.

With 64 bit Vista you can break the 8gb barrier. I think hubby maxed his mobo at 8gb.

Running XP 64 is a bad idea. It was a proof of concept at best. The thing with operating systems is you want one with a large user base. According to Wikipedia, Vista is about 25% of windows userbase and XP is still about 75% - XP-64 is WAYYYYYYYY smaller than vista 64. You could never buy an off the shelf mainstream PC with XP-64. I have run EQ2 on an XP-64 and on a vista-64 machine. Go with vista... if you have the hardware. If you don't have 4+gb of ram, than run 32 bit like a rational person. (There is no reason to open the 64bit can of worms if you don't)

Remember Vista is 6+ years newer than XP and you need more overhead to make it run smoothly. Turn off UAC, install signed drivers, everything will be fine.