I also have this posted on the 2012 forum. I have tried installing the 2011 with the same problem. Here is the link to the details in the 2012 forum: http://forum.bitdefender.com/index.php?showtopic=28412
The machine was a Best Buy Floor Model so I am thinking their demo software and configuration may have caused problems with security and such. I hope I don't have to do a system restore from the backup CD's but if that is what it takes...
Meantime, any help is greatly appreciated.
Rick