PT 8.0.3 and SL nightmare

[marcioguitar]

After upgrading to SL and PT 8.0.3 yesterday my life became a nightmare, a lot crashed all over the place, this remembers me when you guys released 7.4 version, I am getting a lot buffer sizer errors, I already switched to the highiest buffer size when playing back and it keeps crashing, also I switched the number of processors and still crashing, I still keeping it at 3 processors since I have a Quad core machine. Also I started to get inumerous hard driver cannot keept up errors, the same external HD that I have been using before upgrading without a single issue before. Also midicore folder starts to bounce on screen everytime I turn my machine on and very dificult to turn my machine off at this point because midicore folder keeps coming up and preventing from shutdown freezing it. I tought that stability was one of the greatest advantages of PT 8 specially with SL, any toughts??