Good frame, unfortunately unusable

The M45 is located at a really good mouse - it is solidly built and can be adapted very well by 3 removable weights and bolts of weight preference. The sliding feet are large and provide a very low-resistance gliding, the mouse buttons are pleasantly shaped and have a good pressure point. Also nice is the metal wheel, which has a good, not too stiff, and screening is outside rubberized, so it can be turned pleasant. Klackert a little when scrolling up, but not so much that it would bother me.
A small drawback is the thumb buttons, which are attached to me much too far forward, so that I can hardly suppress because there is the thumb joint at the height; In addition, they are very small and have a rather long tripping. The pressure point is not nice, it's better in many other mice.
Widerum positive is the design of the mouse - it is quite short compared to many others, but noticeably wider. For me (and probably many others with broad hands) very pleasant, so I do not have to hook my hand so strongly to control the mouse.

Now an absolute no-go, and the reason why I will go back to the mouse: while the sensitivity of the mouse can be set as desired on the driver software (incidentally, it also has 3 dpi levels), these adjusted constantly. The driver settings do not change, and if you have a time up and down on again is again the desired dpi active, but it can happen at any time - but always when Windows starts. After feeling in CS: GO and gross dimensions of different ways on the mouse pad I'd appreciate this deviation to about 25% higher, the mouse and the pointer is thus faster. Many futile attempts to solve later, I give the mouse now so back because it is so not usable for me in this form.
Too bad - Corsair seems to continue to have strong problems with any software (the Link software is supposed to have as their quirks), my driver-free keyboard works so far from them properly and structurally, the mouse really good.