Is the PC still clicking? If so, can you tell if it's coming from the speaker, or the hard-drive? Hard drive clicking is NOT GOOD. It's called "click of death" for a reason. If your system is still behaving strangely I'd advise backing up as of yesterday! If not, well... keep an eye on it. Perhaps it was a one-time malfunction?
When it happened it was just that day. After I rebooted it stopped. It had to be a hard drive click because my head phones are plugged in. I wouldn't have been able to hear it through the speakers. Also, it's the same click my pc makes when I boot up initially except this time it clicked twice in a rapid pattern then switch to the cricket noise then the pattern repeated. I will be backing everything up when I get home from work tonight. I just was curious if it was something I can fix without buying a new hard drive.