SMS messages suddenly broken, what's going on?

[wireless]

My android phone (HTC Desire) sometimes complains that it "couldn't send a message - retrying". Then today it happened incessantly person on the other end complains they're getting 5-10 duplicates of the same message. I switched the sim to an old feature-phone (samsung a736) and tried more...

More... (http://www.howardforums.com/showthread.php/1771179-SMS-messages-suddenly-broken-what-s-going-on?goto=newpost)