CentOS is a free version of RedHat Enterprise Linux which closely mirrors the commercial version. There are many places in the 'verse which detail changing the default color depth from 24-bit to 16-bit for the S3 Trio adapter that VPC emulates. After doing this I tried 'startx' only to find it wouldn't work so I started digging. The X windowing environment started up then flashed and shutdown again with a console error of unable to find .xterm'. Checking around, I found examples from one cranky coot ......