Digital BW, The Print

Has anyone with a similar setup encountered this problem ?

I am using Silverfast Ai version 6.01 - the PS plugin version 
(upgraded from the version 5.2 that was bundled with scanner)
Polaroid Sprintscn 120
Photoshop 6.01
Windows 98SE

Problem is that after the scanner finishes scanning, the little blue
progress bar shows that it is finished, then nothing happens !!! It is
almost frozen !
IT DOESNT BRING THE SCANNED IMAGE INTO PS

On screen the little box shows:
"Gray scanning" (i am doing a b&w neg, but it doesn't matter what scan
type).
The little Blue progress bar is complete.
A thumbnail of the image.
a Cancel button.
And the little aeroplane with moving propeller.

Now if I click the Cancel button, it will often do what was supposed 
to happen - bring the image into Photoshop.

What do you think the problem is and what can I do about it ?
I've written to Lasersoft/silverfast & posted to their forum but no 
replies.

thank you,
Frank