I tried to install a new driver for my Logitech® Cordless Desktop® MX™ 3100 and the message cam: Unhandled Exception Error number 0x80040707 DLL function call crashed: SPHlpr. RemoveUnconnectedDevice SetPoint hasn't worked after that. I can't make an uninstall either. the same message comes. i tried everything. i'm at the end of my powers when i try to start SetPoint from the install folder comes the error message 0xc0150002. i don't understand the world anymore. and i have found nothing in the internet. please can anyone help me? thanks!!