i also have a problem uninstalling and installing apps in my n900. this is shown in my xterm.
please help me.


/home/user # apt-get tribal-theme-evil
E: Invalid operation tribal-theme-evil
/home/user # apt-get reinstall tribal-theme-evil
E: Invalid operation reinstall
/home/user # apt-get install tribal-theme-evil
Reading package lists... Done
Building dependency tree
Reading state information... Done
tribal-theme-evil is already the newest version.
The following packages will be REMOVED:
tribal-theme-evil
0 upgraded, 0 newly installed, 1 to remove and 11 not upgraded.
3 not fully installed or removed.
After this operation, 14.8MB disk space will be freed.
Do you want to continue [Y/n]? y
Could not exec dpkg!
E: Sub-process /usr/bin/dpkg returned an error code (100)
/home/user #