Inconsistency displaying IDLgrROI

Dear All,

The sample of code below is supposed to convert some data to an IDLgrROI 
and then display it. The STYLE=0 keyword is supposed to cause the object 
to be rendered as a series of points. 

This works well when I am connected to the workstation through a VNC 
session; however when working directly on the machine's console, it 
appears that the STYLE keyword is ignored, and the object is rendered as 
though it were a IDLgrPOLYLINE. 

Does anyone what would cause this behavior? I am somewhat new to object 
graphics, but am learning quickly.

Thanks,
Bill


orois = objarr(num_rois)

for i = 0, num_rois-1 do begin
    tmp = (*ptr_seeds[0])[i]
    // *tmp is [ n x 3 ]
    orois[i] = obj_new('idlgrroi', $
                       [ transpose(*tmp) ], $
                       style=0, $
                       thick=4, $
                       color=[0, 255, 0], $
                       alpha_channel=.4)

endfor

omodel->add, orois

xobjview, omodel