>I've made excellent progress cleaning up the undefined references in the project, and now I'm left with one that's a little frustrating. In several class libs, there is an undefined reference for the same bitmap file. However, when I use a search utility like GOFISH to scan for this file name, I come up with nothing.
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>Do I really have to iterate through every class in these libraries to find the reference or is there another way you can think of to narrow down where it would be?

Jon,

Open Debugger before buld and build log will be directed to the Debug Output window. See if thre's anything helpful in it.