Flash 10.1 is not compatible with PandoraJam which results in strange behaviour.
For now, stick with Flash 10.0 which you can get here:
To uninstall Flash, use the Flash Uninstaller:
As soon as things are resolved, I will let you know via twitter/blog.
UPDATE: This should be resolved with the latest release PandoraJam 1.4 (build 312).