usb port on front of sn41g2

the 2 ports on the front of the sn41g2 will not pick up my usb memory stick and i was wondering why this is and how can i fix it. It picks up my card reader. The memory stick works fine on the ports on the back of the shuttle. the usb stick worked fine on the front until i reformatted my shuttles hdd.

if this is the wrong forum can someone move it

thanks

Check that you don't have any device manager issues.