Anyone else had issues with Logitech's G400 mice? I am on my second one sent to me by Logitech's customer support after my original one would keep dropping out particularly during gaming but it occurred pretty much whatever I was doing. I am in contact with customer support and without really answering my question as to whether this is an inherent problem with the G400 they have offered as a replacement a G400s. On paper it looks good though I have absolutely no need for 8 programmable buttons. http://gaming.logitech.com/en-gb/product/g400s-optical-gaming-mouse But my question really has anyone else had similar problems with the G400?