A bit late...
I actually don't understand this article came out now as I own this mouse for at least half a year already!
I would not buy this mouse again - see the quoted message and it's resolution below. The best gaming experience I had so far was using the Razer Copperhead, but now I am used to this mouse.
Make sure you peel off the sticker on the bottom - this is actually an official recommendation from Razer! And clean the bottom and lens with alcohol (Don't do anything stupid like trying nail polisher!!) - see here: http://www.razersupport.com/index.ph...barticleid=133
Originally Posted by Mescalamba
I had the same issue and this freaking laser is so damn sensitive that a tiny bit of dust upsets it and the mouse starts jumping - the sticker makes matters worse.
I personally use a Razer Destructor mouse pad (hard surface) this mouse is pretty much unusable on a cloth pad as clicking will move the cursor and little cloth particles upset the laser.
There is a number of issues with this mouse you won't realize before you own the mouse for a while - you might even notice the mouse moves somewhat "sluggish" at times. Just check http://razerblueprints.net/ for full coverage of issues.