Undefined References in Object Files

[Mr. Awesome]

Just a few minutes ago, CB (a build from February) was working fine.  I compiled my project, and ran it.  There was a small runtime error, so I went back and corrected it in the editor.  But, when I tried to build it again, I suddenly started getting all sorts of undefined references in object files I've never heard of.  So, I downloaded yesterday's build of CB, and I'm getting the exact same problem.  Here is a sample of the errors:

Compiling: Animation.cpp
C:\DOCUME~1\Owner\LOCALS~1\Temp/cceubaaa.o:Animation.cpp:(.text+0x15a): undefined reference to `Texture::Texture()'
C:\DOCUME~1\Owner\LOCALS~1\Temp/cceubaaa.o:Animation.cpp:(.text+0x23c): undefined reference to `Texture::Texture()'

I cleaned the project, and now no object files are being created at all.  Why is it even doing anything in that folder?  I'm using WinXP if that helps at all.

Thanks for any help.