[false+] Unable to modify Materials properties

[orbiter]

It has been a good long while since I have have a need to modify the basic properties of a material as I normally use a texture to get what I want. However when when I tried today, with a number of different materials, every time I got a crash dump. Wings was still running but I could not perform an edit.

I have looked at the crash dump and it just seems to list a whole host of file and line numbers. I can post it but it it is a big file and may be of very little use to most folk.

Is there a quick Fix !!!!!