I have tried multiple times to install total security 2010 from a cd...every time after it asks me to restart, my computer crashes into a blue screen error.  The error is "driver irql not less or equal" and my computer restarts.  When i boot into safe mode, i can system restore to a point when before i installed total security and my computer works fine...however, with no anti-virus program.  I am running a dell inspiron 580 with windows 7 home premium 64 bit.  here's the link for the minidump file i retrieved in safe mode after the latest crash.  I also sent an e-mail, but am posting here as well to see if anybody can help me...thank you
http://www.sendspace.com/file/xzvqd1
dawebberz