When that happens to me, I cheat.. I grab a glow file that I know does work, and copy it to the model directory using the same .gf name as the one that doesn't. Then I open the ship in the Glowtool, make sure that the glows are all there, clear all groups, reglow, and save. Then recache. That seems to work for me everytime.
![](/ubbthreads/images/graemlins/smile.gif)
To create all new original .gf's, I also go old school.. command prompt in the directory and then type:
echo > glowfile.gf
And then load it. Haven't had many problems that way, but if I do, again, I use method #1..