The mouse1 part of my mx518 had gained some resistance lately, (it wouldnt go in as easy as my left click and had some resistance). So I popped open the left click, anyway i cleared out anything inside and now when i put it back ive sort of dislplaced the plastic, i can still use the mouse but i have to put way more pressure on the left click. Any ideas? I know you can't really help unless you have the mouse but anyone experience this?