Could somebody help me fixing my OCX?

I have an annoying problem with OCX.

I have created an OCX that extend the TreeView. It use TreeView ADODB object, so I can define each level of the tree as a SQL select statement.

The OCX was successfully compiled, and I have put it on my form. But each time I add a new instance of ADODC to my form, my OCX turn inactive i.e. it get black strips all over it’s face.

Could anyone tell me, what I have done wrong here?

Thx and regards,
Eka.