I installed Scientific Linux 5 (a derivative of RedHat 5, similar to CentOS) on a workstation here, just to test and see what's up. It is a little bit like stepping back in time to Fedora 6, I think. One of the thing's I've been surprised about is that the EL community is set on using Firefox 1.5, and I wanted to build the newer one. So I decided I'd take the version of firefox from Fedora 8 and build for the SL5 workstation. I am able to build a new Firefox RPM, but the install fails because devhelp and yelp were built with the older gecko-libs that was provided by Firefox. Well, its not such a huge deal to use the old Firefox on that SL5 system. But it made me really curious about how the 3 packages, Firefox, devhelp, and yelp, are built by the Fedora maintainer. I've been googling on this question this morning and I get a bunch of links to posts about people who have trouble updating Firefox in Fedora 8 because of conflicts with devhelp and yelp, so apparently I'm not the only one for whom this is a difficult question. So, how to build. As I'm writing this out, a guess just crossed my mind. 1. Upgrade firefox-devel. 2. Rebuild devhelp and yelp. 3. Then simultaneously install/upgrade firefox, devhelp, and yelp. Good guess? -- Paul E. Johnson Professor, Political Science 1541 Lilac Lane, Room 504 University of Kansas