Can't Boot With DeathAdder Plugged in

Whenever I boot my computer while my Razer DeathAdder 2013 is plugged in I cannot enter the password to log in through the MB (The BIOS password). It won't let me type. As if my keyboard isn't attached.


When I unplug it the screen gets all distorted.


I then have to reboot with it unplugged from the beginning and it allows me to enter my password.


What's up with that?


BTW, MB is a Gigabyte Z87X-UD4H