Just upgraded to the current bioconductor (stable) release with org.Mm.eg.db_3.3.0 (and GO.db_3.3.0). It appears that the evidence codes listed in org.Mm.egGO2EG include the code IMR which is not listed at the web site the help for org.Mm.egGO2EG links to. Is this a new code not listed on the GO web site, or is it some kind of a bug/typo? Also, the web link
given in the help file seems obsolete, it gets redirected to
Perhaps that should be changed as well.