i came back from work today, turned my monitor on and wiggled the mouse. everything was working fine (typing, clicking etc), then i turned it off and back on after about 5 minutes. now, when i turn it on, startup proceeds as normal to the password log in screen but my computer doesnt recognize keyboard OR mouse. i cant click or type or anything. my mouse is working fine, having tested it on another computer, and when i tried different usb slots they still didnt work. my phone USB charger, however, is recognized with no issue. my keyboard and mouse are both wireless. when i plug in my keyboard, the "on" light isnt on, when i take the batteries out the light comes on briefly, then turns off (i believe once it recognizes that there isnt a connection to a computer). i have an alienware aurora running windows 7 64 bit, i5 processor, bought in march '11. any help would be appreciated!