Ive had this mouse for probably 6 months and from the first week I noticed that the DPI/Sniper button would stay activated randomly. The button isnt physically stuck, but it acts as if it was. Then a few days later the DPI up button started doing the same thing. Those are the only 2 that do it. It never was a huge issue, until I went back to a game where I used them alot as I use the sniper button as a hypershift toggle.