If you have a Logitech Mouse and have been having issues with the mouse double-clicking when you attempt a single click, relax, the problem is NOT your SP3. Apparently some Logitech mice have a hardware bug where static electricity builds up in the capacitors which make the buttons work. This causes a double-click when attempting a single click (quite maddening). The solution is easy. SOLUTION: Remove the batteries and for 30 seconds, repeatedly click the left and right mouse buttons. This releases the static charge. Put your batteries back in and bingo, no more double-click. Hope this helps someone.