I saw a topic with this same problem but could not add my comments to it. I felt that it would be best if I put my two cents in because there was a comment made that said the poster must have been the only one with this problem. Please dont think this is an isolated problem. Many others dont notice it or will not post it due to the fact they dont know it is an avast problem. Hopefully this will be fixed in an update.
Well, I too have an issue with CCC.exe not working properly all the time.
I have seen it on different machines and OS’s too.
All of them are Windows x64 OS-machines both Vista x64 or Windows7 x64.
I did notice sf.bin kicking in when I watch the taskmanager just before I tried to reopen CCC.exe.