Your system should be powerful enough to handle this material with relative ease. Sure, you can always improve, but I think that tuning your system may help.
Have a look here, as it also applies to Win7: Adobe Forums: Guide for installing and tuning a Vista...
thanks for that!
I'm sure i will perform some adjustments and i just bought some memory (which i was going to buy anyway) but.......I'm not sure this problem is related to the system performance. As you said, it's quite powerful and it edits video really well (besides scrubbing) and i've never had any trouble like this with CS5 or CS5.5.
I've also had some problems with Audition recently where it crashes constantly on a particular project and i was wondering if there's some sort of incompatibility between CS6 and my sound device drivers.....I dont know but i need a solution as editing this way it's an utter pain!!!
I don't think it's any system inadequacy or a PP bug. I think it's just a local issue with your install.
Try deactivating PP, then shutting it down. Reboot the system and start PP, and then reactivate.