I recently signed up for Netflix. I watch instant movies on 2 computers at home. One has ccleaner installed and the other doesn't. The computer that has ccleaner installed is causing problems with the Microsoft Silverlight that is required to view Netflix instant movies. It will work fine until I use ccleaner and its tools, then I am asked to install silverlight eventhough its already been installed. What setting or tool (registry) of cleaner could cause this problem? Its a headached uninstalleding and reinstalling silverlight. Thanks