A colon in a DVI file name causes segmentation fault in xdvi, version 22.40b, as one of our users reported (tested on Solaris and Linux). Interestingly, processing a sample2:e.dvi with the older version, xdvi 22.15-k, does not dump core, but exits with an error message: Cannot locate URL: sample2:e.dvi The problem is easy to avoid, but I thought you might want to know :-) Kaja