v2.4.0 running on Ubuntu Linux 10.04. Gerbv crashes when loading this drill file.
I thought maybe the G85 (slot) code was crashing, but no, that's not it.
My drill file that crashes Gerbv
I can confirm the bug you're seeing in 2.4, but it appears to be fixed in the latest version. Could you try compiling the latest gerbv (see webpage for instructions) and let me know if it is fixed for you? There are also some new features in the latest version that may be of use to you. Thanks--