I have a Samsung LN55C630 LCD 55" TV which started getting intermittent vertical black lines about a year ago. I took the back panel off and through some light troubleshooting determined that it seems to have something to do with a bad contact on one of the chips on the board. Applying pressure to the chip seems to resolve this. I know this isn't a proper fix, but is there any suggested material I can use to apply pressure to this chip? I'm basically asking what can and cannot (or should not) be placed on this chip that won't cause problems or start a fire or something. Cardboard? Electrical tape?