apt-get upgrade help!

[Harris Kosmidhs]

Se ena mhxanhma me debian unstable exo to e3hs problhma. To en logo 
mhxanhma kollouse se diafores faseis (xoris na mporo na katalabo ti 
paizei). Se ena apt-get upgrade kollhse sth mesh ths diadikasias kai 
ekana reboot.

Apo tote an kano upgrade xtupaei se polla postint otan paei na tre3ei 
scrollkeeper-update -q opou kai petaei seg fault. Anyway, mphka sta en 
logo arxeia kai esbhsa tis grammes autes.

To allo problhma pou sunantaei tora einai to parakato munhma:

============================================================================
The following NEW packages will be installed:
   nvidia-kernel-common
0 upgraded, 1 newly installed, 0 to remove and 275 not upgraded.
Need to get 3330B of archives.
After unpacking 45.1kB of additional disk space will be used.
Get:1 http://server1 sid/contrib nvidia-kernel-common 1.0.6111+1 [3330B]
Fetched 3330B in 0s (56.1kB/s)
dpkg: syntax error: unknown user `),' in statusoverride file
E: Sub-process /usr/bin/dpkg returned an error code (2)\
=========================================================================

to opoio emfanizetai eite kaneis install eite upgrade. Mporei kapoios na 
boh8hsei?

thanks