Give examples?
I have been running XP64 for over 4 years and Vista64 for a year ( But only since SP1 its been used fully )
I am in a lucky financial position to have been able to afford to adapt my home and extend it purely for all my PCs and during last year, I moved all 8 of my Gaming PCs o 64 Bit, only keeping XP32 on my wifes PC.
NONE have had a single issue with 64Bit at all with the exception of the game FireWarrior
Absolutely 100% of everythign else has either run exatly the same as XP32 or in many cases, its run better.
So, what example, other than the one I have given, can you give me, that shows that 64Bit is worse than 32Bit... Vista or XP