BB Torch :: Cannot Add Or Delete Apps And Languages Lost After Update

Last week I did a device software update, I am currently running OS 6.0, Bundle 2949. First of all, my Twitter and Facebook Apps were downgraded to versions from when I was still using my BB Bold. More annoyingly, I lost some languages on my device. I had Spanish, French, Italian, German, English and Dutch. Since the update I have Russian, Greek, Dutch and English (US and UK), but I cannot add or delete any of these through desktop manager.

I tried deleting and adding in the same update sequence. I tried deleting only, then I tried adding only, and every time I get an error saying the action (or update) "could not be validated due to unsatisfied dependencies." So then I tried deleting a regular app, thinking maybe there was an "unsatisfied dependency" in an app. Same error, and nothing happened. And the same again with a different app.