I've had a scanner given to me as a gift from my math teacher for several weeks now, and with it came an installation CD I thought I needed in order to use the scanner. The day after I bring everything home, my comp's CD drive breaks, and doesn't open when I push the button, so I have been stuck with a perfectly fine scanner for over a month, and haven't been able to use it.
Now I can.
Turns out, you DON'T need the CD and it works once you plug it in.
*facepalm*
~J