Go to next usage doesn't work Follow

Hi all,
I'm using ReSharper 4.1 on VS 2008. When I press Alt+F7 to find an expression it works just fine. But when I press Ctrl+Alt+Down arrow it doesn't go to next usage. I checked keyboard shortcuts and Ctrl+Alt+Down arrow is assigned to ReSharper.ReSharper_GotoNextOccurence, but I see another one: ReSharper.GotoNextOccurence. Does anyone else have the same problem? What is the solution?

Thanks