I think laptops have problems with their adaptors across the board. My family's had the same problem with multiple Toshibas and I have a Dell that other than the adaptor has never had a problem in the 3 years I've had it! The Toshiba were pretty much as loss as it was the adaptor port getting lose (in certain positions it would work but it didn't really "snap" into the port). With my Dell, it was the adaptor itself and still under warranty so they just sent me another one. It's been acting up off and on (sometimes it won't charge when it's plugged in but it always recognizes the adaptor). Do you know someone else with the same kind of adaptor that you could try and see if it's the port or the adaptor?