Tried searching but didn't really find an answer.

My mytether is just flat out no longer working. No over wifi or USB. Ever since going to 1.3 anyway. I'v deleted and reinstalled 1.5.1, re-downloaded drivers and done everything over and over, tried multiple computers just to make sure. (XP 32bit system) Any ideas? is it not 1.3 compatible? Kind of sucks to be sitting in a cold parking lot and find out