Strange. I seem to remember mine doing that, but only the first time that it was run. After that, the settings were in my ~/.fluxbox/init file and I didn't get the warnings any more.
Here are the default values that were added to my file:
Code: Select all
session.screen0.tabFocusModel: ClickToTabFocus
session.screen0.windowScrollAction:
session.screen0.windowScrollReverse: false
Even though windowScrollAction is not set to any particular value in my file, I don't get the warning. Perhaps just the presence of the setting in the file is enough. It is easy enough to try adding these settings to your file and see what happens.
EDIT: I forgot to ask you which version of Fluxbox you are using.