There is another thread about this. I for one returned my Bluetooth desktop due to the keyboard mostly! For one, I did not like the fact that I couldn't access my computers bios anymore without having to plug in my old usb or ps2 keyboard. Also, the lag time from when Windows loads to when you could use the keyboard was annoying as well. I also did not like the fact that the keyboard would seem to go to sleep, and would take a second to turn back "on." This was not too cool for gaming! As for the mouse, I really liked it, but since I returned the desktop, away went the mouse as well. Instead, I picked up a Micorsoft Wireless Desktop keyboard with MS optical mouse and a Logitech MX700 wireless mouse. I don't use the MS mouse. There is no lags, and I can access my bios without problems! Good luck...