This strange problem has been noted with computers that are fitted with an S3 based graphics card.
Updating the drivers for the graphics card using the reference drivers from http://www.s3.com can help resolve this problem.Updating the Pace 56 Voice Internal modem firmware to the latest revision may also help. Download the update file from the driver database section of the Infoserve.com website at http://www.infoserve.com. | 
