I observe this bug on SuSE Linux 9.0 (not on older versions).
Qt applications, that output rotated text crash in XftDrawGlyphs.
You can verify this with the Qt example:
Works perfectly here on 9.1 and the upcoming 9.2.
Hope this helps for you. I guess this happend only once.
Did you try an online update?
Didn't notice that this one was *that* old...
Assuming nobody has something against me closing the bug as this is solely SuSE