gnome problems

[leeelson]

I'm using an HP mini 110 running Ubuntu 8.04. After trying to update Pango (big mistake), when I rebooted, I couldn't get past the screensaver. I can't seem to start X or any application. CTRL-ALT-Delete gives me the logout/shutdown options, but if I try to logout, I get "greeter application appears to be crashing...".

So I tried to re-install Gnome. But before doing so, I followed the broken dependencies HOWTO( http://ubuntuforums.org/showthread.php?t=186672 (http://ubuntuforums.org/showthread.php?t=186672)) This didn't seem to be able to remove all packages. For example, sudo aptitude remove -f packagename gives errors. Any help is appreciated.
Reading package lists...
Building dependency tree...
Reading state information...
Reading extended state information...
Initializing package states...
Building tag database...
The following packages are BROKEN:
fast-user-switch-applet
0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 0B will be used.
The following packages have unmet dependencies:
fast-user-switch-applet: Depends: gdm but it is not installable
Resolving dependencies...
The following actions will resolve these dependencies:

Remove the following packages:
fast-user-switch-applet

Score is 119

Accept this solution? [Y/n/q/?] The following packages are unused and will be REMOVED:
gnome-system-tools
The following packages will be automatically REMOVED:
fast-user-switch-applet
The following packages will be REMOVED:
fast-user-switch-applet
0 packages upgraded, 0 newly installed, 2 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 11.5MB will be freed.
Do you want to continue? [Y/n/?] Writing extended state information...
(Reading database ... 118156 files and directories currently installed.)
Removing fast-user-switch-applet ...
dpkg: error processing fast-user-switch-applet (--remove):
subprocess pre-removal script returned error exit status 245
dpkg: gnome-system-tools: dependency problems, but removing anyway as you request:
fast-user-switch-applet depends on gnome-system-tools; however:
Package gnome-system-tools is to be removed.
Removing gnome-system-tools ...
dpkg: error processing gnome-system-tools (--remove):
subprocess pre-removal script returned error exit status 245
Errors were encountered while processing:
fast-user-switch-applet
gnome-system-tools

Reading package lists...
Building dependency tree...
Reading state information...
Reading extended state information...
Initializing package states...
Building tag database...
Reading package lists...
Building dependency tree...
Reading state information...
Reading extended state information...
Initializing package states...
Building tag database...
The following packages are unused and will be REMOVED:
gnome-system-tools
The following packages will be REMOVED:
fast-user-switch-applet
0 packages upgraded, 0 newly installed, 2 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 11.5MB will be freed.
Do you want to continue? [Y/n/?] Writing extended state information...
(Reading database ... 118156 files and directories currently installed.)
Removing fast-user-switch-applet ...
dpkg: error processing fast-user-switch-applet (--remove):
subprocess pre-removal script returned error exit status 245
dpkg: gnome-system-tools: dependency problems, but removing anyway as you request:
fast-user-switch-applet depends on gnome-system-tools; however:
Package gnome-system-tools is to be removed.
Removing gnome-system-tools ...
dpkg: error processing gnome-system-tools (--remove):
subprocess pre-removal script returned error exit status 245
Errors were encountered while processing:
fast-user-switch-applet
gnome-system-tools
Reading package lists...
Building dependency tree...
Reading state information...
Reading extended state information...
Initializing package states...
Building tag database...