I found a bug when deleting the Opera cache. CCleaner neglects to deleted the following directories from Opera 9.60 even after marking all the checkboxes under Opera:
The user cache:
C:\Documents and Settings\USERNAME\Configuraci?n local\Datos de programa\Opera\Opera\profile\cache4
The favicon cache (let's you see the domain name of all visited websites)
C:\Documents and Settings\USERNAME\Configuraci?n local\Datos de programa\Opera\Opera\profile\images
Another favicon directory:
C:\Documents and Settings\USERNAME\Datos de programa\Opera\Opera\profile\images
A second cache directory (not sure what it stores):
C:\Documents and Settings\USERNAME\Configuraci?n local\Datos de programa\Opera\Opera\profile\opcache
Again, this isn't deleted, not even when all checkboxes under "Opera" are checked.
It's specially troubling that it doesn't delete the favicon directories. I went there and found the name of all the 843 websites that I had visited on the last 22 months..... that was since I started using this computer, and I have run CCleaner dozens of times on it.
Translations from Spanish:
Configuraci?n local --- local configuration
Datos de Programa --- Program Data