I don't know if this virus is still around, but it was chronic in the span 1987-1991: The Yale Whale virus -- your system suddenly gets warm and sluggish when you try to run Harvard Graphics. After being at Wisconsin for three years, I can contribute this: The Jason Zent virus -- turbocharges your system, increasing power and excitement, but frequently slashes files from other programs and crashes at inopportune moments. (...penalties notwithstanding, we'll miss ya next year, Jason!) -===-John R. [log in to unmask] Chem. Dept-===-