I ran into this problem converting a prontopro ccf to a pcf for our 3000's here. Very few codes followed over and even after reteaching all codes, they still would not function properly. Importing tsu2000 based ccf's have worked flawless for me so far. It's a shame though as PENG does a nice job of converting the color ccfs into 16color grayscale. Looks like it's back to custom gui design zone again. ;)