Lightroom 3 super slow on new Windows 7 64 bit...Why?

I've recently switched over to  Windows 7 64 bit Home Premium, running 8GB DDR3 RAM, 1GB ATI Radeon 4800  series video card, 1920px monitor and have found the performance in  Lightroom 3.4.1 much slower than I did on Windows XP, 32 bit running 2GB  of RAM with a 128MB motherboard card (laptop to boot).
Why  is this happening? The main issues are extremely slow imports (minimal  previews set as default when importing), very delayed thumbnail  (preview) rendering (the grid view sometimes sits with half the  thumbnails rendered, and half not rendered, then all of a sudden, a  minute or two later, all will be rendered...), and slow, in-consistent  1:1 rendering. I've tried all the different combos when it comes to  preview rendering but nothing does the trick. I've even tried switching  my 10GB LR3 (ACR?) cache to different drives but nothing does the trick.
Could  this be an issue with the Catalyst Control Center (software controling  my video driver)? It's all I've got left to consider but would very much  like a resolution.
Thanks in advance.

Try the performance optimization tips here first:
http://kb2.adobe.com/cps/400/kb400808.html
Optimize your catalog(s), render 1:1 previews on import, and make sure your Cache folder isn't near the setting in LR preferences. If necessary, increase your Cache size and see if that helps.
If you regularly use Standby Mode to turn off your system, try shutting down Windows AND REMOVE AC POWER. If you have other connected devices (storage, camera, game, etc.) that use a separate power supply, disconnect them from AC power as well. Wait at least 10 seconds, then restore AC power to all devices, and reboot your system. This called a "cold boot," which will insure restoring ALL hardware devices, operating system, background applications and drivers to a known good state.
When I'm done for the day my OS is "Shut Down" and the main AC power strip turned off. It is the ultimate surge protection – NO CONNECTION. When I reboot the next morning I know all my system memory and other resources are freed up and available for my designated usage.
Following these guidelines I have absolutely no issues running LR 3.4.1 on my Windows 7 64 bit system.

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    Message was edited by: wheetabix
    Message was edited by: wheetabix

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