cifs_mount failed w/return code = -13

This error usually indicates that Samba is not installed, although CIFS is compiled into the kernel. On Gentoo, either emerge samba, or emerge mount-cifs (much smaller).

Compiz-Fusion python errors

Errors compiling, and using compiz-fusion can usually be fixed by running python-updater.

A good example is the error below, which is usually what you will get when the settings manager, or the emerald theme manager won't start from the fusion-icon.

Traceback (most recent call last):
File "usr/lib64/python2.5/site-packages/FusionIcon/interface_qt4/main.py", line 66, in
NameError: global name 'run' is not defined