Cannot suspend (hibernate or sleep)

[TheNessus]

kubuntu 9.10, KDE 4.4.1, Nvidia driver 195

jeff@jeff-lappy:~$ sudo hibernate
hibernate:Warning: Tuxonice binary signature file not found.
Some modules failed to unload: nvidia
hibernate: Aborting suspend due to errors in ModulesUnloadBlacklist (use --force to override).

I even installed this tuxonice thing but to no avail...

[TheNessus]

hmmm..

[TheNessus]

ok, so after rebooting it works just fine. Installing that missing program solved it. I guess it simply got removed during upgrading to 4.4.1?