The first step in getting MIDI in and out to function properly is to make sure the cabling to your external keyboard is correct. You need to connect MIDI Out of your
keyboard to MIDI In of your interface, and MIDI Out of the interface to MIDI In on the keyboard. If you are using external sound modules, connect them via the
MIDI keyboard’s Thru jack.

Second, run Cakewalk, and from under Options | MIDI Devices choose the external MIDI in and out drivers that represent the MIDI interface you have installed, and
click on "Move selected devices to top" (only the output side will move). If you see any other external MIDI drivers showing up, aside from the ones needed to
control your hardware, you must remove it, via the Windows Control Panel. If you do not see any external MIDI drivers relating to your hardware, it is because none
have been installed. You will need to install them from the disks that came with your MIDI interface or sound card. This is done via Windows (Control Panel | Add New
Hardware).

If you continue to have trouble with MIDI in or out you should contact the manufacturer of your MIDI hardware to obtain the most recent version of their drivers.

If all the above is setup properly, including having the latest drivers, and you still have problems either with in or out, you will need to investigate the possibility of a
hardware conflict. Double check your IRQ and Port Address settings for each installed hardware device. You do not want any two devices to share the same IRQ or Port
Address setting. Also, you may find IRQ 2/9 to be problematic on some machines.