I've been using SMS on my Treo since it rolled out many months ago. I just got my wife an SMS capable Sprint phone so she could avoid the shortmail crap. Her phone can send SMS fine from the phone and receive SMS on the phone that are from the Sprint website and other SMS enabled phone. The problem is - SMS from my Treo go through to her phone as shortmail and require her to go on to the Vision web to view them. What's up? Any ideas?

TIA