Heya, I have tried unstable's evince to view a TIFF document and had no problems - can you still reproduce the problem with evince in unstable? Could you provide the problematic tiff file if the problem still exists for you?
Marc -- Fachbegriffe der Informatik - Einfach erklärt 22: Interaktives Fernsehen Fernsteuerung mit Taste 'Bezahlen' statt 'Aus'. ('Standpay'-Taste) (nach Peter Berlich)