This should probably be run by the primary developers, but I think the attached patch is correct, and it seems to resolve the problem for me.
Mike.
Index: gnucash-2.4.4/src/app-utils/gnc-ui-util.c =================================================================== --- gnucash-2.4.4.orig/src/app-utils/gnc-ui-util.c 2011-04-29 12:11:28.348721954 -0400 +++ gnucash-2.4.4/src/app-utils/gnc-ui-util.c 2011-04-29 12:11:59.809241069 -0400 @@ -607,7 +607,7 @@ { const gchar *form = NULL; - form = scm_to_locale_string (scm); + form = gnc_scm_to_locale_string (scm); if (!form) { if (tax_related) @@ -638,7 +638,7 @@ { const gchar *desc = NULL; - desc = scm_to_locale_string (scm); + desc = gnc_scm_to_locale_string (scm); if (!desc) { if (tax_related)