I loaded PRE8 last week and have run into a few issues. The biggest so far is having my CPU usage go to 100% when the auto-analyzer kicks in. I have to open task manager and disable auto-analyze in order to proceed. This seems to happen no matter what size file i'm working with. I've tried most of the tips listed in the technotes to no avail. Any suggestions?
Without knowing how fast your processor is, how much RAM you have and what operating system you're using, it's hard to give you specific advise.
But I'd certainly recommend turning off Auto Analyze and Background Rendering, per the FAQs to the right of this forum. They're really more trouble than they're worth, IMHO. They'll choke even the fastest system!