My iPhone 3gs got a little wet about 8 weeks ago. It works fine except for random signal dropouts when 3g is on - (no issues with 3g turned off) however, there are a few water marks under the actual backlit LCD screen (not the digitiser) and the watermarks show no sign of disappearing even after 8 weeks. They take the shape of 4 diagonal thin black lines only visible when the screen is plain white. Has anyone taken a screen apart and tried cleaning marks like this off from under the lcd? I have taken other lcd screens apart before and they usually consist of some layers that look like tracing paper beneath the LCD glass sandwiched against the backlight. Most of the previous screens I have disassenbled have been held together by small metal clips, but the iphone lcd screen seems to be completely encased in a white plastic surround with no clips I can see at all. If the layers are inacessible and therefore uncleanable, does anyone know of a cheap place to buy a new 3gs LCD? Thanks in advance!