hybridization problems

[Sean Davidson]

Further to this discussion about different membranes, I recently began using
the Digoxigenin-based system for Northern blotting. Initial attempts used
Hybond N+, which is recommended for this procedure, but signal was always
virtually undetectable amongst high background. When I began using
Zetaprobe (Biorad) instead, results were (are) great.
  So do you think this may have just been the batch of Hybond, or why are
the results so much different?

Sean