Drawing preview in explorer or file open window shows only small part of drawing.

Hi!

I'm enjoying Draftsight so far and recently upgraded to V1R2.  Prior to the upgrade, the drawing previews in windows explorer and in the Draftsight file open window worked great.  The previews still work for older drawing files but any drawing saved with V1R2 shows only a small part of the upper left corner of the drawing in the preview.  Is there a setting I can change to get the preview to show the whole drawing?  I'm running Windows 7, 64-bit.

 

Thanks!