I was driving back from school today, and after about 100 miles, I had to slow down going through a town, then when I got back up to speed, I go to put cruise control on, and a few seconds later realize that it didn't turn on. I made sure the cruise power button was on, made sure the clutch and brake pedal were all the way up, and it was all good. Then a few miles down the road, my tach starts going heywire and would try and get to the rpms that I was at, but it would eitehr just stay at zero or bounce around like crazy. My VAFC still said the right rpms. Then after going crazy for a bit, it just layed at zero for a hundred or so miles. Then all of a sudden, it came back to life, would stay at the rpm that I was at, then go back to zero and do that for a while until it went back to normal. Then my cruise started to work again. At first, the cuise would work, and then just shut off like I had pressed cancel but after a few more minutes, it went back to normal. This cycle of events happened a few times during my drive, and I really have no clue what the problem is. All of my cannon plugs under the hood were fine, adn I have never taken my cluster out of this car, so I doubt that thats the problem. Any Ideas?