when I listen CR at night, I do song request 2-4 times at night but I can't do it at work, because no request at daytime, and pull-down menu is not working on pda (disappears)
I do most of my requesting during the night as well. Mostly because I can actually sit down and listen to the music I asked for, and also because we seem to have hit the "sleepy" music past a certain hour too. But you're not alone!