transmisssion on 1999 Saab 9-5

when I was driving the other day it would not go , it all the sudden seemed like it was stuck in nuetral but I was in drive. The motor make no wierd sounds it just looses power and I haven't been able to drive it since, which was two days ago on a Sat. of course. It will start and you can put it in drive but it won't go anywhere or get overheated. Whats wrong I've only had it 5 days.

Asked by for the 1999 Saab 9-5
Sounds like the transmission malfunctioned and you need a good trans person to diagnose what went wrong and what it is going to take to repair it.
I'd like to know before I go to see a trans guy!!