UPDATE: Nov 11th 2010; 8 pm
XP-SP3 and W7 x86 with build 986.
Starting System Cleaner the following way, results in:
1.XP-SP3: 'Freeze' application error.
2.W7 x86: 'Access Violation' application error.
SystemCleaner_01.jpg
Two attached .zip files, containing:
1.XP-SP3: Bugreport.txt + Debug Log.html + 2 Screen shots.
2.W7 x86: Bugreport.txt + Debug Log.html.