10-15-2012 10:01 PM
11-16-2012 03:39 PM
Hi and Welcome to the Community...and apologies for the delay. Hopefully you already have resolved this, but just in case.
You may want to try this procedure to perhaps narrow down the precise causal item:
When the behavior presents, you know the culprit...the last thing you loaded.
If the behavior does not re-present, then you know that either step 1 or 2 cured it.
If the behavior presents no matter what, then you likely have a hardware level issue for which no amount of OS or software can cure.
Good luck and let us know!