I haven't heard the problem return so maybe those
55 malwarebyte threat files were the culprit?
I created a new Bitdefender CD
http://i64.tinypic.com/2e6au76.jpg
and then ran the scan which came up clean
http://i64.tinypic.com/2h4yibp.jpg
afterwards I ran another malwarebytes scan
which also came up clean
http://i63.tinypic.com/54dkcx.jpg
I then restarted the 8500 to check the F8 function
and still does not work and goes directly to the MBR
Robert