the latest ones I use are 80.40
you have to modify the inf file.......weird I cannot find the appropriate posts by awegno, but the gist is look for "RotateFlag" in the nv4_disp.inf and change it's value from 4 to 0x40
You can pretty much use any of the drivers from www.laptopvideo2go.com
I have never used drivers with a version larger than 95.XX so your mileage may vary.
Also, make sure you have the latest rotation utility to reinstall it from toshiba....