Thank you all for responding to my question in regard to Realview's inability to operate on my system. It appears the hard drive is the culprit as I have a Nvidia GE Force 8500 GT. I contacted HP and they recommended a Nvidia Quadro 1800 FX. Now, one more question. I am using a student version that I won thru a scholarship. Other than student version being printed on the prints, are there any other restrictions to the student version? Could the inability of realview to operate be one?Thank you and I look forward to your response.