I ran into a strange issue with texts when I flashed 8/6, I think. For me, all of my outbound texts were displayed in the classic view only [assuming they were sent from the classic view] and the only thing I could see in the new view were incoming texts. If I sent a text from the new view, those messages seemed to "disappear".

I ended up hard resetting, which seemed to clear the issue up immediately. I've been running 8/11 since it came out without any major problems.

You might consider a hard reset or a reflash. If it seems like Picture Mail is the problem...run the "remove picture mail" cab, soft reset, run the "install picture mail" cab again, and soft reset. If you don't soft reset in between the install of each cab it could act screwy.

Also make sure the threaded view is enabled, as suggested previously.

cha-cha-cha