I just noticed this: My L button on my DSL is a little... iffy on registering when it's pressed. You have to press right in the middle of it with a fair amount of force while you can just lightly tap the R button, or even push it down from the side (slide your finger down the side of the button). I tried cleaning around the L button with a toothpick (being VERY careful, no worries) but that diddly squat. Any suggestions to what the problem could be and the potential solution? DiagnoSe is my source that the button isn't registering a press every time I press it unless it's at that certain spot.