

The usual methods for editing an object's appearance work as usual, as in: I can paste a style or make changes to the line or fill properties, but no changes actually appear in the selected object (ie: it remains invisible) and as soon as it is de-selected or another object is selected, it disappears leaving no trace it was ever there (which, I suppose, it wasn't).
Normally I'd suspect bad defaults, but I can't find anything that corrects the problem, and the fact that I can't paste a new style onto the object makes me conclude I'm either unaware of what might need correcting, or there's a bug.
I'd appreciate any suggestions.