I'm not sure I can explain this problem but I'll try: When I click on something to drag it, the mouse drops it. Does that make sense? For instance, if I'm playing cards and I click on a card to drag it, it drops before I get it to the place I want it. Sometimes when I click on something, the mouse picks it up and drops it a couple times before it "latches" on, then, I can drag it.
I hope I haven't made this too complicated!
I went to the manufacturers' web-site and upgraded the software but it hasn't helped.
I am running XP and have a Logitech Marble Ball.
It's worked fine until lately...maybe I just need a new one?