LiveCycle 8.0 saves and previews very slow

I have a file that is about 75 pages long, and a total of less than 1000 fields. It takes over 5 minutes to save or preview. What could be wrong?
It loads fairly fast in Reader -- less than 30 seconds.
I'm developing on Vista Home Premium, 2 GB Ram.
Help!

Any hints would be appreciated! :-)
Thanks!

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