I recently purchased a new 3rd party battery for my Toshiba P750 PSAY3U-0LF01H. The laptop will not boot on the new battery past the Toshiba splash screen. My current battery is a 3rd party battery and boots the laptop up with no problems. I have tried holding the power button down as suggested by the forums, to no avail.When I try to boot with the new battery, the Toshiba splash screen comes up and the goes to a black screen, wit a cursor in the upper left hand corner. Any suggestions?