I think it's safe to say at this point that nobody who posts questions in this thread is using a Compac. Since the Compac went out of production well over a year ago, and since then we've made about four times as many 2Pacs.
And then there's the consideration that, even if it's a Compac in question, the 2Pac driver and cgminer are a couple years newer and much much better and with current support.
So, maybe people should just stop posting in this thread. And instead go over to the 2Pac Support Thread for questions about 2Pacs. And maybe consider searching in it just a bit before posting questions because almost all of them have been asked already. Especially if the issue is you're using stock cgminer without 2Pac support and your stick is enumerating as an AMU with a ridiculously low hashrate.
So, 2Pac users, please let this thread die. Go somewhere with current (and actual pertinent) information, where the name of your product is in the title.