Thank you for the information, Larry.
My problem is "Black Screen with blinking cursor on top left corner" without PCanywhere tool bar.
After following the instructions to fix possible cause of problem like modem drivers, video drivers etc, the problem does not go away.
My requirement is to have someone dial in to my computer and I can work on his computer. I set up two computers with pcanywhere and two identical ZOOM 56K dual mode faxmodems in my office and tried the above. It works fine with one "host" and the other "remote". It just does not work with both computer "remote". By the way, it works with IP connection.
Is there any other alternative than pcanywhere for my requirement?