aaaaaargh - Josh's PC has suddenly gone into an eternal circle of shutting down, only to restart automatically - if only it would fully restart. Instead it brings up the screen giving you the options of safe mode, safe mode with networking, last safe config, normal etc. Select any one and it starts to load windows only to fail and go right back to the options screen again. If you leave it o it's own devised it will go round this circle for ever. Using F5 I've managed to pull up a BSOD which says if this is the first time you've seen the screen then start up as normal. I'd love to - only computer says "no" It says run chkdsk - I'd love to - but I can't get in. Can't get a DOS prompt or anything. If you get it to run with command prompt the last command shown refers to AVG and I wonder if this is where the probem is - but how can I get in to see? Windows XP pro btw Help - I have a teenager whose life force has just been taken from him - it's not pretty!!