my slt 780 got rolled by genius son and his friends.<br />most everything is working fine now except for the<br />digital display. at first it was showing gibberish<br />and then went completely blank. this happened once<br />before and i found that the battery had a dead cell<br />causing the display to malfunction. tried the battery out of my other pwc but nothing. i also tried a new battery and the results were the same.<br />any suggestions on what else to check?