I'm having problems with my Scimitar mouse too, I knew about the problems regarding the side buttons and the laggy and jerky cursor movements. I've had my K95 RGB for over 1 year and I love it, I looked at other mice but I wanted to get another corsair product to compliment it.
I got my Scimitar on 26th December, it worked fine for a few hours then the lights froze and my cursor started to jerk and move erratically. I had to restart my pc to fix the problem, since this problem arose I have had to disable all lighting effects and my mouse has been working fine since.
I await the next CUE update to rectify these issues. I love the mouse, the feel, the quality of the buttons. I just want to be able to use it to it's full potential.
