This has started maybe about two weeks ago.. I was texting a person to ask if they arrived yet on the bus because i had to pick them up.. I never got a response back.. Well.. I got the texts later.. like 8 or so hours later including like 4 VM. That same person has sprint and the EVO. Now this other person is on Tmobile and about 670 miles away and she will get my messages pretty fast but her's are almost delayed and i feel bad because it makes it seems like I don't want to speak but when I do get them I get like 3-4 messages at a time come in. all delayed but then sometimes it goes quick like last night :-/ Should I call sprint?