I have a 1997 RR 4.0, last night while driving on to the entrance ramp of the expressway, I excelerated very hard to gain speed to enter the road. At about 50mph, my veheicle slipped out of gear as if in neutral and remained. When I try to put the car in forward or revearse gear, nothing happens. I do get an "Gearbox Failure message" on the dashboard. I also noticed my "Check Engine" light stays on now. Any ideas?

Thanks