You're right, turns out it was not HL related, I'm still not sure why this would start out of nowhere but it's related to teamspeak overlay (a neat little prog that lets you see who's talking or joini ...
I installed the new HL and now PF+FB won't start, the toolbar will show the games starting (like a window as usual) then instead of getting the full screen logo and loading % it disapears and hyperlob ...
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