Yesterday I downloaded the latest CCleaner version (3.00.1310) and ran Cleaner and Registry Integrity. I am running Win7 with Outlook 2007. I'm not sure (of course) that CCleaner is to blame but I later noticed that Outlook is not displaying images, only boxes with the "red X". At first I thought it was a temporary Internet connectivity problem but it's been continuous since then.
I Googled for cures and can't find anything wrong. I found the temp directory and it is empty. When I open an attachment that file appears in the temp directory. I double-clicked the Registry backup file from CCleaner and it reloaded ok but did not fix the problem. I'm now at a loss for what to try.
Please excuse the preceeding post. I rebooted Windows again (first time after restoring the registry entries) and images now display correectly in Outlook. I guess one of the removed registry entries caused the problem. I'll look at it in more detail when it's not a holiday.. Now back to the family, wondering where I disappeared to.