PSA: Botched AVG 2011 update might be why your PC won't start today

Did you update your free copy of AVG 2011 today, in the hopes of evading a nasty bug? In a set of mildly familiar circumstances, the antivirus company has inadvertently unleashed an even nastier one. Users running 64-bit editions of Windows 7 and AVG 2011 are reporting a STOP error after a mandatory antivirus update this morning, which is keeping some from booting their machines into Windows at