Can't connect to cellular network after low battery

[pacman]

hi all,

i just had my touch pro for 1 week and i have had to hard reset it twice already. what happened is when the phone goes low battery (ok, extremely low battery) to the point taht it had to force shut the phone off. after re-charging it, i can not connect to my carrier's cell network (i'm with Bell) anymore. i talked to Bell support and we can't figure out what happened and what caused it. so we hard reset it. then it happened again this morning. this time i was sure it was because of the low batt situation as i saw it go low batt (still with cell network connection, battery icon is with an '!') then it shuts off. i connected it to the charger and i can't connect to the cell networkanymore.

the icon i get on the phone signal strength is not an X or bars next to the tower icon... i get a circle with a diagonal line (similar to nut-free logo except the nut is not there

has anyone experienced this? is this expected? any fix? did i get a bad unit?

thanks!!