Just tonight my VGN-T270p’s keyboard stopped working properly. A number of keys, including u, i, o, p, j, k, l, and maybe a couple others send different characters to the computer, i.e. typing “u” gives me a “4” instead. My external keyboard works just fine. Any ideas? If anybody has experienced anything like this please let me know!!! I’m hoping there is an easy fix to this problem. Thanks.