Transmission on 1995 Mitsubishi Eclipse

My problem is with the transmission. It is an automatic and the problem is sometimes it will not shift out of 1st gear so I have to pull over and turn it off and on again then it will be ok for a while. There is no forewarning when it will happen and it is random. I am hoping it is a computer or electrical issue and not the transmission.

I Had the sme problem and it was the transmission shift module, but there also was a transmission problem
2 more answers
What was the diagnosis?
probably internal. take it to a shop to check it out and give you a bid