Wow, quick and efficient as always, Firon. Automatic Updates must have undone my patch just recently because it was, indeed, set back to a ten-connection limit. First time that's tripped me up. I'm sure that must have been the problem. As for the buffer space issue, shame on me for not checking the FAQ. I missed it because it was more of a system-wide error. I hadn't previously noted it while perusing the FAQ. Thanks again, Firon! Edited to add: For what it's worth, neither Norton GoBack (don't use it) nor mIRC (hadn't run it that session) would have been responsible for my "insufficient buffer space" error. I'm sure it was a result of the TCPIP.SYS patch reverting to the ten-connection limit. Perhaps another thing for people to check when they see this error.