>>You're right about the speed and memory. The best way to improve Vista and VM performance is more RAM.
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>I've got 4 Gb and rarely go over 50% usage - so I think I'm comfortable
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>The problem is disk I/O. Is it Vista or my disk ? Dunno but I suspect Vista. Next time I'll go for a 7200 rpm but that only improves the search time

That is one of my other major peeves about Vista. On every machine I work with that has Vista on it, the disk drive (at least the system disk) is working almost nonstop always. The machine can be sitting idle (user interface wise anyway) overnight with no screen saver and the drive activity goes on and on and on...