I have a new PC with Vista 64 bits.

I don't particularly like Vista, I liked XP better.
My question, one of two is this:
Do I want Windows 7?

Do I want IE8? It did cause problems on my XP, might it cause problems on my Vista?

Thanks.

Win 7 is a worthwhile upgrade. IE 8 works better under Win 7 then it did under previous versions.