MAYAman, sorry for the slow response but.... in July of 2003 we had our SSB for only a couple of days when it did the exact same thing. I remember posting about it but because of upgrades to the site, somehow the thread is gone. The dealership had it flatbedded to the shop and said it was a loose connection inside the dashboard. I have noway of knowing how accurate that was because they really had little knowledge of the car at that time. They did however fix it and no further problems have showed up.

Good luck