I'd say that's pretty much your preference (resurrection vs. new). Just be sure to do a search first if you want to start a new thread so you don't end up repeating a current one. That's a good way to piss off the admins because they then get to merge your thread with the other similar one (this means more more work for them).
On the same note, pay attention to which forum you're posting in and try your best to post in the right spot.
Common sense will make both of these points easy to determine your best course of action at least 99% of the time. For that ambiguous 1% just ask someone before posting.