Uninstalling and reinstalling generally won't help problems of this nature.
Especially if you're using a trial version.
This should work a lot better, if not I'd advise you to contact customer
support.
C:\Documents and Settings\andrewb\Local Settings\Application
Data\Macromedia\Flash MX 2004\en\Configuration\StartPage\StartPage.swf
C:\Program Files\Macromedia\Flash MX 2004\en\First Run\StartPage\StartPage.swf
Try renaming these 2 files OLD.StartPage.swf.OLD
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