Flash CS3 slow after testing movie?

[phillyj8]

I've looked all over for an answer to the question and called Adobe but no luck so far.

I got CS3 when it came out and was pleasantly surprised to find Flash very quick on my iMac G5 2GHz with 1.5GB RAM. But after a while, I noticed that it would randomly slow down. I'd use it for a few minutes, then suddenly, everything would lag, particularly moving around in the Actions panel. For example, it becomes very hard just to highlight text or scroll up and down.

After a couple months of this, I've realized that it seems to happen after I do a Test Movie. If I just open Flash and use it without ever testing, its fine. And its not every time I test, but often enough.

Has anyone else experienced this? Any ideas?