I notice, though, that a lot of times it's a newbie that opens an old thread. The person probably is new to forums in general and doesn't realize that it is better to start a new thread. It's the same with people who suddenly chime in with "their" problem, concern, etc. on an existing thread, instead of starting their own. I think a gentle reminder to start a new thread would be more beneficial. It really doesn't bother me that much that this happens.