Sorry, not trying to discount what is happening on your phone, but I find it amazing to read of how some of these phones just freeze and don't work after simple updates like 2.2 and flash. I went through all these updates and before I rooted, deodexed, and themed, my phone was working great. Flash was perfect, battery life was fine. No crashes, freezes...i just don't know how to respond even though I really want to. Maybe the only thing to say is check your set up on your dx, do a reset now that its on 2.2. It really can't hurt.
Swyped while being lazy in the DXForumApp