I have a SLES10 SP4 system which I just upgraded from SLES10 SP3. Environment is PowerPC. I receive the following messages in my y2log when attempting to configure installation sources:

2013-03-25 16:02:18 <5> linops01(21013) [base] Exception.cc(log):94 SourceImpl.cc(getPossiblyCachedMetadataFile):400 THROW: SourceImpl.cc(getPossiblyCachedMetadataFile):400: https://....@nu.novell.com/repo/$RCE/SLES10-SP4-Updates/sles-10-ppc//repodata/filelists.xml.gz fails checksum verification.

Any ideas?
Thanks.