As Zap says, press and hold for 3 seconds.

On a slim chance that you have placed a 99% transparent button on top of the remote icon, open the System Page in the editor and make sure that there is not one of your buttons over the 'remote' icon on the screen. If you have and have assigned a single delay action, that is why you are hearing beep but get nothing. If not, press and hold statement above rules.

The answer can also be found in the manuals (available from the files section) but for some reason not in the FAQ (that I could find).

See page 15 here for TSU3000:

[Link: files.remotecentral.com]

Or page 19 here for TSU7500:

[Link: files.remotecentral.com]

Once you know about the 3 seconds, a search of the PDF for 3 seconds yields other places that also require a 3 second press.

Also note that if you assign 'Tools' or 'Setup' 'Special Action' to an onscreen button, you have to hold those onscreen buttons for 3 seconds as well before remote will jump to the screen.

And finally, if you cannot figure what the problem is, you can rectify with a 'merge'. Create a new configuration, merge your existing configuration into the new configuration, and then drag your home pages from the old activity into the home activity of the new config.

Regards,
Lyndel