Installation

Installation involves just plugging the mouse in either a free USB slot or using the supplied USB to PS2 adaptor to plug into a free PS2 port. Then installing the included software which handles the mouses settings including the customisation of the extra buttons.

Build

As you can see the mouse has a nice glittery ripple effect which looks very impressive as you tilt the mouse. The coloured central section is just suited to rest your palm on, good smooth surface and comfortable shape. Your thumb fits perfectly down the left hand side into the groove and can be easily moved up to reach the 2 buttons without any obstacles. As for your 3rd and 4th finger they rest over the right edge, one moan in my use of the mouse is the position of a ridge on the right edge of the right mouse button. I rest my 3rd finger just here, which against this ridge isn't particularly comfortable.

I can see the design Logitech were going for, your 3rd finger along the edge of the right mouse button and your 4th finger hanging under the ridge. But speaking as a Counter Strike regular having my 3rd finger here tends to interfere with my middle finger and its use of the right mouse button.

Extra Details

I thought it would worth including a little tip I learnt using WinXP. If you are using the mouse with the PS2 adaptor, so the mouse is plugged into a PS2 port this applies to you.

Open control panel, then go in the mouse options, then onto the motion tab. At the bottom of this menu there is a section called "Advanced Features", in that is a slider with the title "PS2 report rate". At default it is set to 100 reports per second. Move this to 200, the max, then apply. You should notice a jump in the smoothness of the mouses movement.