Version:            (using KDE KDE 3.5.6)
OS:                Linux

"Titlebar Actions" -> "Title bar wheel event" overrides the settings for "Window Actions" -> "Inner Window, Titlebar & Frame" -> "Modifier key + mouse wheel"

When the cursor is over the titlebar or frame, the "Modifier key + mouse wheel" setting is not being recognized as a distinct event from the (No modifier key) + mouse wheel.

When the cursor is over the inner window, the "Modifier key + mouse wheel" works as expected.