Sorry, that's enough info for me. He is right. Warzone 2100 seems to support only xga-standardised resolutions in fullscreen (restriction in openGL ?). His resolution 1440x99
0 is a resolution for some TV-displays (edit:some notebooks (mac book) have odd resolutions too: 1440x960, 1680x1050, 1280x800).
I guess this is his native resolution and he didn't use command-line options.
I've tried some non-standards as fullscreen (1440x990, 1200x1000 f.e.) and warzone crashed everytime. Sometimes the loadingscreen appears before crash, but mostly game doesn't start, and only line in stderr.txt is the mentioned one. (2.1.3 and 2.2beta)
My graphics hardware supports such odd resolutions as fullscreen and can be configured by user too. Since Warzone is my only openGL-based application i can't try other ways. I blame it to the fullscreen detection routine.
I'm using nvidia geforce 8600gt + LCD 1600x1200 and Windows XP and latest drivers to play Warzone...
Try to start with command-line options (howto: http://developer.wz2100.net/wiki/CommandLineOptions
warzone2100 --resolution 1440x900
Maybe it is slighty deformed, but should work.