The botched .ko.debug problem is fixed in rawhide, and has never struck any released RHEL4 binaries in fact. The build environment issue is fixed in FC4 as well (FC4 update redhat-rpm-config-8.0.34-1.1), and FC4 update kernels built since that update should be fine. I think that is kernel-2.6.12-1.1447_FC4 and later. Thanks, Roland