Yes, do you use an ATI driver by chance? I’ve had similar strange problems. The best thing to do is try your app on different driver versions, or compile for windows or mac os x and see the behavior there. Cut down your app to minimum size possible, if possible, also. What you changed in your app so it crashed is also interesting to know.
I consider ATI a bad buy. I’ve bought my HD 5450, so I could play with GL 4.0 cheaply (it’s the cheapest card with advertised GL 4 support), then I’ve realised that even ATI drivers 10.4 beta, that supposedly support GL 4.0, do not really support it