Comment 4 for bug 915782

thank you for your help Nicola. I gathered the locks, but in the meanwhile I think that the problem was a failed update before adding OMAP stuff:

i restarted installation from scratch and this time I managed to complete the package update before installing the OMAP-addons and anything worked fine this time.

i think my problem is that i'm not acquainted to the actual gnome desktop and the description in text form on http://www.omappedia.com/wiki/Ubuntu_PPA seems to be outdated for me, while the screenshot on the same page is actual.