Channel list switch page 605

[Bollen57]

Hello,
Since a few days ago I can no longer swap pages in the channel list using the CH +/- buttons on the controller.
Using them only switch one channel up/down instead of a whole page like before.
Is there some kind of setting for this and/or is there anything I can do to switch it back to how it was before?

Thanks in advance.

I have tvip s-box v.605
5.0.48

[ftor]

This functional should add your SP