Help Text Message Problems

[vibrant1234]

I have what seems to be a constant problem on my Vibrant. I seem to constantly have problems receiving text messages. I only find out that I have missed messages when I eventually do receive a message from a friend demanding to know why I had not answered their previous messages. It does it seemingly randomly and can occur in the middle of conversations even when I haven't loaded any new apps or done anything else that seems like it should have caused the problem. Any help would be greatly appreciated.

 

[vibrant1234]

Here is some more information if it would help. I have not rooted the phone, I just use the original messaging program, I have cleaned the messaging cache, and it seems to largely happen with a couple of specific people. The most frustrating is that it can be in the middle of a conversation and have received a series of texts from a person only for it to miss one or two in the middle and then go on with no indication that a text had been missed. Any ideas?