Oh, Sony. You've been doing so well with not making things blow up lately. Even a seemingly minor fizzle turned out to be a false alarm. While it's not laptop batteries this time, it seems that Sony has run into a bit of trouble with some of the AC adapters used for its VAIO all-in-one desktops and docking stations. Specifically, the insulation used in adapters for the company's VGC-LT and VGC-JS2 series desktops and VGP-PRBX1 and VGP-PRFE1 docking stations can apparently fail over time and pose an electrical shock hazard for users, although there have been no reports of injuries to date (and only four