Horizontal pan view locked in virtual cockpit FS9

[ARCO 245]

When I switch to the VC view, I cannot use my horizontal pan view (left/right) either with my yoke buttons or my keyboard, it is locked in forward view, whereas I can use the vertical pan with no trouble at all. All commands work fine in 2D view and spot plane, so it is not related to a hardware problem since the same yoke buttons are used for all views.When I go to View Options and select VC view, I cannot select any other side view in the window menu, it remains on forward.I have a GoFlight set of 12 modules, when I unplug them, no change. My yoke is an AETI (not USB)it is properly calibrated and all buttons work for all their assignments as indicated above.Deleting my FS9 cfg file does not solve the problem, it is rebuilt the same way.Could anyone lead me to recover my virtual cockpit?With anticipated thanks.Jean-Claude