pasting chart shows chart area, not the chart

Hi

this is sort of strange thing. There is a chart imported from another
program with copy/paste. On one computer this results showing only the chart
background. This is what it looks like.
Looking closer: If you paste the chart as enhanced metafile picture it
divides the chart in two parts: one is the chart area (background) anf the
chart itself is placed to the right of the chart area.
If you paste the chart without choosing format it is pasted as a picture.
When ungrouping the picture it divides the chart as in the enhanced metafile
picture only that the chart comes to the left of the chart area.
Using a 3D chart the paste special choises include hardware independent
bitmap (hope the term was translated correctly). using that format pastes the
chart ok.
Testing the same with 2D chart. The chart is pasted ok. Also using normal
bitmap.

Why does PowerPoint try to interpret the chart as a picture? and why only in
one computer? (there are several that can paste the same charts directly
copy/paste. only this one computer needs to use paste special/bitmap). There
must be a setting somewhere, but I have not found it.

Any help would be appreciated.

Thank you