Why does ActiveX video control becomes corrupt?

[carol]

It only happens in some computers. When i open my .vi suddenly the activeX video control becames corrupt, the properties dissapear...

[Gorka Larrea]

Perhaps LabVIEW can't find the activeX library, generally, browsing the activeX reference and selecting the apropiate library will fix the problem, don't know if it's a matter of different installation directories or what.
Hope this helps