Can anybody help?

I am using a SolidWorks VBA macro to automatically create a pdf file of a detail drawing.

The macro works ok and it does create a pdf file as required.

However,

When I run the macro the actual SolidWorks drawing (slddrw) temporarily shifts to the left than back to the centre.

Is there any way of preventing this happening, is it a bug, or do I simply have to put up with it?

Can anybody