>A nightmare.
>
>I upgraded to SP1 practically as soon as SP1 has been available.
>
>I saw somewhere that with it Vista should be 10% faster. Well to me with SP1 Vista has been 10% of the speed it was before. No kidding!
>
...
___
Denis,

I've installed SP1 as well today - and yes, it's slower

After having read this http://www.bleepingcomputer.com/forums/topic159399.html I've decided to hang on for a few days and then decide whether I'll uninstall it