Learning works only on very close range

Hi,
I have bought a brand new USBUIRT and learning and sending works fine wird GIRDER 3.3.
I have, however, noticed that learning IR commands only works when the RemoteControl ist very close to the USBUIRT.
Receiving works fine from almost everywhere in my room (the codes appear in GIRDER, and the red led on USBUIRT flahes up), but learning only is possible when the remote is right in front of USBUIRT (maybe 3 cm or so away).
When the remote is away about 10 cm or so, it doesn't learn anymore.
This is the case with several different RemoteControls.
Have you noticed the same? Or is my USBUIRT somehow defective?
Greetings,
and thanks in advance for your answer.
Heiko
I have bought a brand new USBUIRT and learning and sending works fine wird GIRDER 3.3.
I have, however, noticed that learning IR commands only works when the RemoteControl ist very close to the USBUIRT.
Receiving works fine from almost everywhere in my room (the codes appear in GIRDER, and the red led on USBUIRT flahes up), but learning only is possible when the remote is right in front of USBUIRT (maybe 3 cm or so away).
When the remote is away about 10 cm or so, it doesn't learn anymore.
This is the case with several different RemoteControls.
Have you noticed the same? Or is my USBUIRT somehow defective?
Greetings,
and thanks in advance for your answer.
Heiko