When you press Main and Ent to get the little person to stop running, then you need to download at that point. You can't press any other buttons or it will not download properly.
If that does not work, there are settings for the port that may need to be adjusted. You can find those settings in the URC MX-700 F.A.Q. (something like "My computer is not communicatig with the remote").
Thank you,
Damon DG
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