I've had mIRC 6.3 for a couple weeks on a brand new machine. I have an infrequent problem regarding the "reload logs:" function. Sometimes the last few minutes of a conversation in a channel is not displayed the next day. It's happened to me about 3 or 4 times. I automatically log my chat/channel sessions and the logs themselves captured everything, it's just the channel window not displaying the last minutes of the previous session.