I had been operating fine with Tweetdeck, for about six months, with Facebook and LinkedIn columns.
Then I noticed some columns were not updating properly.
After checking on their website and reinstalling, including the Adobe Air patch, Tweetdeck wouldn't load at all.
I sent a support ticket asking for help.
In the meantime I decided to try Seesmic, and got on fine. Forgot all about Tweetdeck until I saw a Tweet from them.
When I read the answer to my problem, there was no answer. They had abolished support tickets. Too many required, huh? Now you can only communicate with Tweetdeck using twitter if you want support.
Then Tweetdeck told me to change my browser to Chrome and use Tweetdeck there. Why should I change my browser just to use Tweetdeck? Seems a lot easier to stick with Seesmic.
When I decided (politely) to DM them that I didn't think much of their attitude, it seems I couldn't DM because they weren't following me.
So tough luck Tweetdeck, my complaints will have to be public.