INDIRECT and drop down menus

In the attached file I have a sheet named 0001-2011
On this work sheet I have a table that has drop down menus under Artikl, Dimenzije, Dimenzije.
I'm using

=INDIRECT($B4)

in the drop down menu under Colum Dimenzije
And when i pick Cev under colum Artikl I can't pick anything under colum Dimenzije.
Does anyone know why? I'm working my *** of here

Please help.

Denis