Crashing When Useing AE.

This crashing started last night, every time I start making an Arc I will crash ither 30minutes into making it or 5 minutes. I have no diea whats happening or whats causing it. This is the first occurance of crashing ive had on this computer. Im on windows vista, its always updated and any problems i can usually fix with one of the many posts in this thread. So any help would be great!

And guess what we are going to ask for...

::looks at first two links in signature::

it seems to be on protector.....its happed to my ITF team 2 mish in a row....GM had to fix the 1st one