Okay, this is an infuriating problem that I have been furiously googling to try and solve. Haven't come up with anything, but I wonder if someone here has some idea?
Basically, the problem is this: I have an 11" MacBook Air (late 2011), so it is one of those where the whole trackpad is a physically clickable button (which I love, normally). In the past few months though, it has started to register clicks when the button is not physically depressed. Now, the first thing I checked was Tap To Click, and that is still turned off. The happens is usually something like this: I physically click the trackpad (which registers), and then begin to move my finger without lifting it up from the trackpad. For whatever reason the trackpad will then (sometimes) detect another click while I'm moving my finger around. Occasionally the mouse movement itself seems a bit sluggish, or phantom clicks will occur in other situations, but it mostly seems to happen after I've actually physically clicked the trackpad, and before I lift my finger back up again. When it really gets bad, the trackpad is practically unusable, clicking and dragging all over the screen and making even simple tasks very frustrating.
I'm really not sure what is going on. It seems that even if one of the mechanisms were wearing out, it wouldn't register phantom clicks like this, but it doesn't seem to be a software issue either. The trackpad seemed a bit oily, so I thought maybe cleaning it would help, and I tried to clean it a couple of times with screen wipes. It did seem to help, reducing the frequency of the phantom clicks, but it didn't get rid of them entirely.
Any ideas? Has anybody encountered this behavior before?