The only other thing I can suggest is to reinstall iMovie. As you are on Snow Leopard and iMovie '09 (version 8.0.6), I think you should be able to reinstall from the iLife disk that came with the MacBook. But make sure you have a backup before reinstalling. It's not something I'...
Click on "Scan".Please post the LOG report(log file should be in your C drive) Do not change the default options on scan resultsDownloadaswMBRLaunch it, allow it to download latest Avast! virus definitionsClick the "Scan" button to start scan.After scan finishes,click on Save logPost the...