I have two mouses; I bought a new Microsoft Wireless Optical Mouse to replace my aging Microsoft Optical Mouse. My old mouse was great; responsive, accurate and the extra buttons were handy as well, but it’s been having some clicking problems hence my replacing it. However my new mouse has a few problems. The draw rate on my old mouse was averaging around 124MHz, using it inside windows or within games was very smooth and accurate. But since switching over to the wireless mouse averaging is around 109MHz, not a significant difference I thought since my refresh rate was forced to 75Hz and my FPS in most games stays around 90FPS. Using my wireless mouse is very unresponsive and not accurate at all. I thought this was likely due to the draw rate of the mouse but I'm not so sure after seeing 109MHz, both mouses are using USB 2.0, the wireless mouse has new batteries so that’s not the reason either...... Is there something I'm missing?