I got a Microsoft Wireless Mouse 1850, it´s a cheap but good quality mouse. At this moment it have a problem: when i use the wheel and scroll up it inadvertently scroll down and viceversa. I did follow some recomendations such add lines to move and so on but without results. I suspect that the wheel is dirty , but apparently the mouse has no screws to disassemble and clean the mouse wheel , Do you know how to disarm this mouse model ?
Thank you for your time.