I ordered a replacement glass/digitizer combo to replace my friends cracked iPhone 3gs. I've successfully replaced a few of these so I wouldn't say I'm an expert but I do know what I am doing. I took it all apart, got the new glass in, turned the phone on and everything seemed to be working fine. It appears to look like a brand new iPhone, but there is something wrong with the digitizer. When you tap an app it selects the one to the left of the app you tap on. I thought maybe it was just a bad glass, so I replaced it with another that I had around the house and still having the same problems. Does anyone have any clue what could be wrong or might have gone wrong? I appreciate any and all help from you guys! *just a side note both glass's came from the same manufacture.