Version of balsa in (null) is terribly outdated. Even 1.3.7 would be better, and 1.4.0 would be a huge improvement. Additional info: There is a gnome_2 port of balsa but the balsa-2.0.1 has some bugs and 2.0.2 that fixes them will come only tomorrow or day after tomorrow.
It's unfortunately really too late to be changing versions at this point. :(
Too bad... I've been building Balsa myself lately, of course, but still; proper support in the Red Hat distributions would be really good, for those of us who just can't understand what on earth a calendar and an e-mail client are doing in the same application, if you know what I'm saying.
2.0.3 should show up in rawhide shortly.