Aten 4-Port USB DVI Dual Link/Audio KVMP Switch

Hint: Use the front USB or back USB connector (not the identifed keyboard / mouse connector) with your fancier Logitech or MS mice that have special wheels, buttons, etc. I have an MX1100 that works with this switch. Had to update the firmware. The HSM (Hotkey Settings Mode) manager is a little funky. Just a note, I somehow changed the HSM invocation sequence to the alternate Control - F12 method. (Please see the manual.) Invoking HSM and typing H brings you back to the NumLock and "-" key sequence. That stalled me for a while with the whole firmware upgrade process. I used a separate machine off of the KVM switch with a com port hooked up to my monitor's VGA input. That did the trick for me and the special Logitech mouse functions for the MX1100 running the latest Set Point Control Center Version 6.51.8 and Driver Version 5.50.98 running on Win 7 64 are running just fine with this KVM. Middle mouse wheel click works in Ubuntu Linux 12.04 on this KVM.