Nope. But you seem to have
two issues here. Correct us if I've misunderstood. Nope you are correct.
Issue 1. When Friend A sends you an SMS (not an MMS, phone msg with a picture), you can't open it. You also can't open anybody else's messages after that.
=> What happens? Does the
Messages app close suddenly? Give you an error message? No error message, but her texts don't show up.
=> Can you open other people's SMS messages before? Yes, all other contacts work. Can you open their messages after receiving something from Friend A? She's the only contact that doesn't work. Other friends have iphone and their messages work fine. Everytime I want to send her a text message I have to re-enter her telephone number.
=> Have you tried adding one of the HTC Messages widgets to your home screen? If so, what does it show when she sends you a message? No I haven't tried this.
Issue 2. You can't find Friend A in the Messages app addressing, and have to keep reentering her by phone #. That is, you search for her by name or by phone number, she's not found. Yes, I even tried deleting her as a contact and the same issue occurred.
=> Can you find her in
Contacts? How about if you click "Phone" from your home screen, and dial her number, does her name show up? How about if she calls you, does it only show her phone #, or her name and pic?
=> Where is her contact stored, is it in your Gmail account? Phone only? Phone only. Do you have T-Mobile contact syncing enabled? I am a customer in Canada. We don't have t-mobile syncing.
With this information perhaps we can give you more specific help. Less exclamation points, more detailed info, please.
