Hi, welcome to vista! Typically 3d 06 scores are around 2-300 different to XP (lower) but as drivers improve this is starting to get better. First off, make sure all your drivers are the latest (Nvidia is now at 169.04 altho' this is a beta and I'm getting my best scores yet with 3d 06 with this driver). Vista is also known for not being the best gaming OS but again this is starting to 'slowly' change. Have you got the latest 'Hotfixes'? If you go to the main Nvidia site for drivers
http://www.nvidia.co.uk/Download/index.aspx?lang=en-uk you will see a link for the updates (these help specifically in gaming). They really do make a difference so make sure you get them. Also I go to the actual update site for Vista :Microsoft Download Center: Windows Vista and using my update history as reference get all the updates I've missed (quite a few) you will find quite a few that relate to performance and compatability.
Vista is awfull for copying files! Again there is a update that improves things but its still way slower than XP.
I use a defrag utility which is free
Disk Defrag - Reclaim the Speed Of Your Disks its far faster than the one supplied with Vista and makes a hell of a difference. Your HDD does do a lot of indexing when you first upload Vista although it does get better with use and doesn't seem to thrash as much.
I use a better version of 'Disk Cleanup' too, its called CCleaner (crap cleaner) and is brilliant. Not only does it remove temp files but you can clean the registry too, get it here CCleaner - Home.
To defrag the registry I use a utility you can get free here Free Registry Defrag.
Try to keep your system running as clean as poss as Vista runs much better used like this (as does any OS), programs such as Adware and AVG will take care of Spyware and Viruses.
You could also check out this guide, its the Tweakguides Vista companion TweakGuides.com - The TweakGuides Tweaking Companion and is well worth a read ( the site itself is very usefull for further utilitys too).
On the hardware side, how are your temps? If your CPU is getting too hot it may be throttling back. Also check your memory one stick at a time using Memtest Memtest86+ - Advanced Memory Diagnostic Tool. Is your PSU up to the job? You didn't say what your running but with that type of system your going to need something in the order of 600-700W at least.
I hope this has been a help. Good luck


Not sure about the 'Enterprise edition' why not check out Microsofts website?

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