Freesurfites,

If you are encountering the problem where the 'qdec' app exits stating a 'BadMatch' error, then a work-around is, prior to starting qdec, to type, if using tcsh:

setenv XLIB_SKIP_ARGB_VISUALS 1

or if using bash:

export XLIB_SKIP_ARGB_VISUALS=1

Graphics will run much slower, as hardware acceleration will be disabled, but the app is at least usable.

We are still trying to find a real fix for this problem. This problem seems to occur on newer Linux distributions such as Fedora Core 5.

Nick