1. Click on Start > Settings > Control Panels, and double click Add New Hardware. In the first window click on “Next”. In the second window select “No, device is not in list” and then click on “Next.” ... you'll be prompted to search for drivers. Hit next, windows will search for drivers... select "No device is not in list."
2. The next window will offer a list of different types of hardware to install. Scroll down the list and select “Sound, Video, and Game Controllers.” Then click on next.
3. In the next window, Windows will list a number of manufacturers. Because Mark of the Unicorn is not listed, simply click on “Have Disk.”
4. Insert the driver disk or browse to the folder containing the expanded download. Click “OK” and at the next prompt click on “Finish.”
5. Confirm the IRQ setting and Base Address or Port and click on “OK.” That's it. The driver is now installed.

When installing a MIDI Timepiece AV (MTP-AV), a MIDI Express XT, a Micro Express, a Pocket Express or a PC MIDI flyer, you will then get a prompt to perform an auto setup. If you get a no reply from the interface it is important to confirm that the communication mode of your LPT port is set to EPP or bi-directional. This setting is established in the BIOS of your system. Your computer manufacturer can walk you through these settings if you are unfamiliar with BIOS.

You will also need to check what IRQ the LPT port is set for. Our drivers require that LPT1 is set to IRQ 7. You can check what other device may be using the same IRQ by going to the System Control Panel, click the Device Manager tab, and double-click the Computer at the top of the list. Make sure that there isn't another device set to use IRQ 7.

We've found that legacy devices like sound Blaster cards cause problems with MIDI interfaces. In the system control panel/device manager, disable any legacy emulation setting for your sound card and/or disable any "Legacy drivers" that your sound card may install (labeled "legacy" or "dos" or "emulation"). To disable a driver, right click on it and choose "disable". Typically disabling legacy emulation will not affect the sound cards operation in windows.

ECP printer port drivers are not compatible with MIDI under 98/ME. Use the normal Printer driver for the LPT port. To check whether or not you are using the normal driver, go to the device manager and click down on the ports list. Your LPT should read "Printer port (LPT 1)" rather than "ECP Printer Port (LPT1)". To update the drivers select the ECP printer port and choose properties. Hit the drivers tab and the "update drivers" button. Choose "No" for auto scan, next and "show all drivers". You should see a "Printer Port" driver on the RH side. If not, use your windows CD to install the driver.

Some network cards can cause problem with MIDI interfaces. If you've done all the steps above and still have a problems, try disabling items listed under "network adapters" in device manager.

Switcher boxes and copy protection dongles can also interfere with the scan. For troubleshooting, remove these devices.