So my phone screen has been acting erratically after a drop. Clicks on buttons/icons by itself, makes its own calls when in the address book, I have a difficult time typing the right buttons... for example, if I push 5, i get an 8, or if I type 6 I get a three... sometimes there are dialog boxes I cant click on due to being in the middle of the screen..... Other positions on the screen work fine.... I did replace this broken digitizer with another one that had cracks, but the phone stopped acting erratically.. I just had the button issues... which I attribute to the cracked screen... So my theory is that my digitizer broke, although no visible breakage lines/cracks... I get ready to order a new digitizer when some one tells me the digitizer does nothing more than the utilizes the 4 bottom buttons (home, menu, etc) and plays the role of the glass protector from the lcd. ... and that I need a new LCD... Not a new digitizer.....but I thought the LCD was nothing more than the display screen, as in a tv..... I thought all the input was done via the digitizer screen.. Am I wrong??? Did I miss the boat on the role of the digitizer and the LCD? Thanks!