Help about validation in Forms 4.5

[Quoted] [Quoted] Does someone know if the When-Validate-Item trigger fires during the process of previous-item?
[Quoted] In my case the trigger doesn't fire (for example if I press Shift+Tab). Do [Quoted] you know if exists some property to set? Thanks

	Massimiliano Bellifemine	
	m.bellifemine_at_pride.it
	Pride S.p.A. - Italy