This problem has been happening ever since I got off the train coming from college. I have a HP Pavilion dv6000 with Windows Vista Home Premium. I don't know when it happens but my clock is usually wrong as if it stops working for an x period of time. For example at 11:19 this morning it said 4pm, the day I got home from college it did the same thing.

My guess is the CMOS battery got loose on the train, since I was using it there but I don't want to go opening my laptop (I'm apprehensive about that since I've never done it before) for no reason. Also I would assume the CMOS battery getting loose would produce other problems.

Btw, the laptop is only a month old at most.