DPP 4.2.31 Help please

[Ákos Lumnitzer]

Hi guys
When I open DPP 4 and try to view older files, I get this funny pen looking tool and the circle with the line through it. I cannot see exif or magnify the view.

For example, the below screen capture shows files taken with a borrowed 1DMkIV don't have it and I can magnify, check exif, use the tools etc. The ones taken with the 1DMkIII are a no go.

Any ideas? TIA!