This is an issue I have noticed for quite some time. I was just curious why this seems to happen to me, or if it happens to others as well. Sometimes, I'll send someone a pm, I can see that they're online, but after an hour or so I still receive no reply. I know people aren't always at their pc's, or are sometimes busy with something else. The thing is many times, after an hour and a half or so, my friend will finally send me a pm saying "sorry I didn't reply earlier, I just received your message". Is there some sort of lag between sending pm's? I'm just wondering, because at times it can be very frustrating. If so, is anybody working on a solution for this problem?