Hi there , First I thought it was just a problem with the Logitech G700 gaming mouse I have but then I try to switch to another mouse an the exact same problem persisted. PROBLEM: When I click left mouse button I almost always get double click command. And dragging is almost impossible, when drag selecting texts or url's on notepad , although the mouse button is fully clicked in , the process gets interrupted. Like I said I get this now when trying out another mouse , so this most definitely excludes the G700 to be faulty. I wonder what is causing it , it started to happen when I changed my system , and am now using a new board ASUS p8p67 with i2500K , and 4 gig RAM. Mouse mouses are wireless , and the g700 is 2.4ghz and the other mouse is a little less specs I believe . Thank you kindly Ralph PS , the same happens when the G700 is linked to its usb cable.