diff -r 5336b40d4636 -r fd25bc3ab207 pidgin/gtkimhtml.c
--- a/pidgin/gtkimhtml.c	Mon Aug 10 02:06:56 2009 +0000
+++ b/pidgin/gtkimhtml.c	Mon Aug 10 03:27:52 2009 +0000
@@ -2953,7 +2953,7 @@
 							font->size = oldfont->size;
 						else
 							font->size = 3;
-						if ((imhtml->format_functions & (GTK_IMHTML_GROW|GTK_IMHTML_SHRINK)))
+						if ((imhtml->format_functions & (GTK_IMHTML_GROW|GTK_IMHTML_SHRINK)) && (font->size != 3 || (oldfont && oldfont->size == 3)))
 							gtk_imhtml_font_set_size(imhtml, font->size);
 						g_free(size);
 						fonts = g_slist_prepend (fonts, font);