I have both these mice and currently running windows 7 build 7600. anyways i can get both mice to work in windows although while in a game (warcraft 3) neither games let the side buttons work. the side buttons work to what i program them to in windows but when i start war3 the buttons dont work at all. btw the lachesis seems also to be not tracking properly in war3 cursor stops working for like 2 secs or its jumpy so i runing the adder which seems to be fine except for the buttons not workign in games. really wish i could get teh lachesis to work properly though adder is too slow. any help or any similiar problems?