ive got an old HP w/windows 98 os. I am no longer able to save pictures/images to my computer via a 1200 ub Mustek scanner. I indeed get the pre-scanned image on my program,but fail to save it to my computer due to "imaging disk full" message. I've searched for images on my computer to no avail. The icons pop up for the saved file but no picture. How do I find this disc and empty its contents.