I have been having the same problems, using ver. 7 due to ver. 8 conflict w/ McAfee.
What I have figured out is if you have multiple windows open and you shut some down right before you change pages on SA it causes a crash. So now I dont close anything or wait a sec or two after I close before I change pages and this solved my problem.
Thank you for sharing this.

We were also having unexplained crashes before updating to IE8 (and one big explained crash

). I'm glad your problems have resolved or become manageable
