Brilliant mouse for about a year then it's junk
by SteveI have 2 of these mice. The first was accidentally trashed when it got knocked off the table and landed on a ceramic tiled floor, directly on the middle mouse button/wheel. The middle button is NOT a normal micro-switch, it is a flimsy copper "dome" that effectively "clicks" in and out (like the cricket clicker toy). The impact dented the delicate copper plate disabling the middle button and the copper dome could not be repaired. The second mouse I have been using for approx 14 months and last week the left mouse button started giving problems. This is a common and extremely well documented flaw with this mouse and ALL Logitec mouses that use the same OMRON micro-switches. Apparently it is the cheap and nasty Chinese switches Logitec choose to use . The problem manifests itself with the left mouse button indiscriminately double clicking when only pressed once. As the problem worsens, the button no longer remains depressed, so drag & drop is not possible nor is highlighting certain text etc. Basically, once the button/s start to go, the mouse is trashed and must either have all of the cheap Chinese OMRON buttons replaced with decent Japanese versions, or the mouse replaced entirely. Replacing the buttons if you have the parts is relatively easy but also requires that you destroy the mouse feet in order to access the hidden screws holding the mouse together - so the feet need to be replaced too if repairs are made. I love the mouse, the features and feel, but it is let down by terribly cheap components which in reality make it the worst and most unreliable mouse I have used since the 1980's. Unless you dont mind replacing your mouse every year or so, steer clear of this and ANY Logitec mouse that uses the same OMRON switches
