export image as eps - os data method

I export a graph containing five images as eps; all images except for the smallest one are exported with the 'smart' method. Using 'setigoroption imagedraw,bmdata=1' results in:

IMAGE: OS Data method disabled: image too small to bother
IMAGE: OS Data method OK (osData= 1), realfast= 0, edge pixels OK= 1
IMAGE: OS Data method OK (osData= 1), realfast= 0, edge pixels OK= 1
IMAGE: OS Data method OK (osData= 1), realfast= 0, edge pixels OK= 1
IMAGE: OS Data method OK (osData= 1), realfast= 0, edge pixels OK= 1

The 'non-smart' rendered image really slows down illustrator (or gsview or inkscape...). Can I force Igor to draw all images with this 'smart' 'OS Data method'?

OS: windows XP
Igor 6.0.3.1

Thanks,
Fabrizio