I saw this on my 8700 this morning. I guess I just never noticed before. Searching for network on the message screen though I have bars. Switched to application screen and T-Mobile is shown. Back to message screen, still searching for network. Back to applications, T-Mobile. So, I turned off radio, counted to 5, switched it back on and went to messages screen, and T-Mobile is shown. Bottom line, I don't know if turning the radio off an on did anything or the the OS worked its way through the display hangup, or what. I'll live with it.