Help ... it seems that my gf stepped on her eInk screen and broke it I see replacement PRS-505 screens on eBay but I also see that to calibrate the screens a waveform file is needed. Also, I found a badly translated Russian site that has a script that can calibrate the waveform. Can someone briefly get me up to speed on what would be required to actually calibrate the new screen? We could buy a kindle, maybe even for a similar cost, but it sucks to just junk all the electronics because of a busted screen. TIA.