A new version of R/qtl (1.44-9) has been released at its website (
http://rqtl.org) and will be on CRAN in the next day or two.
This is mostly a set of small bug fixes, though we did add the ability to control the colors used in geno.image().
For a list of the changes, see
https://github.com/kbroman/qtl/blob/master/NEWS.mdKarl Broman