Known bugs/limitatons for the current version:

* With large query sequences, scale numbers may reach image limits and then
be truncated.

* In a single Blast result, if two or more blast HSP have the same label,
accession number and entry name in their fasta description line, the
probablities hypertext links for all those HSP won't work correctly; they
will all link the same alignment. This problem will occur with redundant
databases in single result, but not with multiple results in a single file.
