Application Request

[Matt_H]

To expand on zipper's comment, this is a very common error if something has overwritten some of your ReAction classes with older ClassAct ones. Some installers will dump files into SYS:Classes without asking or checking versions, breaking many/most ReAction programs. Copy the correct classes from the 3.9 CD and/or BoingBags.

[Matt_H]

That's the deviousness of this error (as it pertains to the scenario I mentioned above): it has nothing to do with resource.library. resource.library can be present and the correct version and you'll still get the error. The actual problem is usually a sloppy install script that overwrote some BOOPSI classes it shouldn't have.