We have a 4.2.1.9 TSM server running under OS/390. We have a number of Windows 2000 systems using the 4.1.2.12 client levels. Some of the postings at www.coderelief.com indicate that bare metal recovery is problematic with this combination of OS and client level. Is there a 5.1 level which has a solid enough track record to warrant installing it? Failing that, is there a good 4.2 level?