>> I recall when SGI switched from X layered atop GL to GL layered atop X. > What was their rationale for doing that? I don't know. I don't recall ever seeing a rationale given. /~\ The ASCII der Mouse \ / Ribbon Campaign X Against HTML mouse at rodents.montreal.qc.ca / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B