just out of curiosity, what is the difference between chained and "screen buffered" mode? also, did anyone ever bench the tseng/paradise/s3 optimized modes? i'm assuming these just fell to the wayside with the prevalence of vesa 2.0 TSRs though...

lameduke actually exposed all these weird modes in its setup program while in duke3d they are just found in the duke3d.cfg file.