Mod Crashes when Science Screen is displayed

[Phoenix]

Playtesting a Mod I am making, everything seems to be okay, except that whenever the science screen should be called up the game crashes. No message or anything it just crashes.

Also are there any freeware programs that can edit pcx? It seems a little silly to me to buy a program just so I can cut and paste.

[Phoenix]

Thanks for all the help. Got the problem fixed. It was a faulty units or buildings pcx file.

[Switch]

If you're still wondering about a free pcx editor, I suggest The Gimp, a freeware image editing program that has many features also found it the quite-expensive adobe photoshop...the only thing that takes getting used to is the interface.