BOM link to drawing Grayed OUT!!

I have 6 brand new workstations with 2009 sp0.0 installed. Ihave 1 installation that has an issue in drawings with BOM's.

It randomly loses site of the drawing. The option when youright-click on the drawing to link bom to drawing is grayed out.

I have exported setting from a good identical system, restored themon the bad system and still the same problem.

Cannot find the "switch" to turn that option back on.

Please help.SolidworksBill Of Materials