Lube it. Spray a little bit of oil INSIDE the mechanism, not on the outside. This will affect your paintballs by putting oil on them and changing the ballistic characteristics.
Check your batteries, check that nothing is blown on the board, and check for moisture.
Rocking drop-forwards like they're going out of style...oh, wait...
My join date doesn't show it, but I've been 'ballin' awhile...