I don't know. Seems like quite a common problem to me, if you use the search button OR give us better info than "I zoned and I can't see things" we could help you a lot more. You didn't tell us which zone was giving you problems at first, you don't tell us what server you're on, you might as well as just posted "help I'm stuck" and left it at that.
Now, if you still can't find a solution after that, report back and we will get you fixed up. Just gotta toss us a bit more info.