However I have fucked up (I think, I haven't tried it yet) the 2 line LCD that came with my Arduino. I was trying to remove the header pins and solder longer ones onto it because they're too short and don't fit into the breadboards.
Removing the pins was easy enough but when I tried to remove the solder with wick so I could put the new pins in the traces on the board started lifting and I made a right mess of the thing :S I will try it to see if it works but I doubt it.