Btw guys bumblebee 3.0 works perfectly. The jump in fps for the graphics tests is phenomenal. Its much easier to set up than ironhide which i was using previously.

On another note, does anyone else experience horrendous mouse jumpiness only when using the trackpad? I've not noticed this for a long time because ive been using a mouse but today when i took the laptop on the road, it became so bad to the point of being unusable. Rebooting temporaily fixes it but then i just comes back after a few minutes. Initially the cursor is just extremely jumpy so it is impossible to click on anything. Then the cursor becomes impossible to move in the vertical direction. Its really exasperating. Any ideas?