Dragging plug-ins to FX bin stops before its destination. -solved -switched mice

I can't drag my plug-ins to the FX bins anymore - they stop halfway through the destination. Also if I try to drag the corner of any of the tracks to open them up to see a larger view it's not grabbing a hold and staying a hold. Do I need a new mouse? Or have I screwed up the settings somehow? Or? (I am realizing now that it also has this problem in explorer. The only safe way I can back things up is copy/paste. This is a drag. (pun intended.)
 
If you did read this, is this a common occurrence. Does a mouse just die?