Missing toolbar in data model editor

Hi,
I just received an rdf file from one of my collegues.
i can open the file without any problems but when i go to the data model tool i don't see any tool bar.
it impossible to add any placeholder columns and so on without this tool bar, because i'm not allowed to add any object from the object navigator either.
i'm allowed to delete objects though.
tool version is reports 6.0.8.11.3
when changing to the layout editor i see the toolbar and when i start a new report from scratch the tool bar appears.
any help greatly appreciated.
thanx
kim

having worked with reports quite a lot i wasn't aware
that you could toggle this toolbar on and off.But I also have forms where the toolbar tunrs itself off for no apparent reason. And yes, you can turn it back on with the View menu, but that doesn't explain why it is disappearing.
Dave

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