Can't install anything after upgrading to Diablo on N810
 

My N810 came with 2008SE_1.2007.42-18.
After upgrading to Diablo, can't install anything!
As suggested in one forum, I did try adding application catalogue of maemo extra chinook, but didn't help either.
Weird thing is, when everything works fine in 2008SE_1.2007.42-18, why should Diablo break down all any installations, rendering the tablet useless?
Any thoughts? I've been dealing with this problem for a while now...you may read about my previous misadventures here: http://www.internettablettalk.com/fo...ad.php?t=23429

Any help/clues will be great!
Thanks,
Agent Smash