So - the L button on my DS Lite is becoming unresponsive. I've heard this is a rather common problem. Right now, pressing down really hard on the button a few times is required for a press to register (blowing onto the button seems to help a bit.. for a while). Nintendo wants $75+tax+shipping to fix this, according to their website... which is awfully expensive for such a small issue, IMO (1/2 the cost of a new system!) What other options do I have?