text messages not sending and rollback to PRL

[nursemm05]

this is sort of a two fold problem. I recently updated my PRL to 60667. I want to go back to an older version. (don't remember which I had though) because since I have updated I can't randomly send text messages. It's not they won't go through, it's the button doesn't work to send. It will also hang on an incoming text, then I can't send. I know it's weird and some will say it's not the PRL but NO other changes were made. When the problem starts my EV/1X icon will hang on 1X for several minutes, sometimes as long as 20 minutes! When the text finally does come through, I try to reply and the screen button to send won't send it. I have to save to drafts, then reset then send. So... I wanted to rollback the PRL. I save an old PRL to storage card, go in to EPST and edit, blah blah then I get an error code "Turn on LPM failed. Press ok to reset the device" Did a search and saw someone has success moving file to device, moved to "my documents" still doesn't work. Anyone have any ideas?? this is SOOO frustrating!