I have a Eye One Pro revB product in 2005. Is there a way to understand if it is time to maintenance? Its diagnostic software is not so helpful... If I compare the measurements of a printed target with the measurements provided by other spectro and I found coherence, should even the emissive measurements reliable? Thank you Marco Risparmia con Tutto Incluso Light: telefono + adsl 8 mega a soli 19,95 € al mese per un anno! SCONTO DI 120 EURO! http://abbonati.tiscali.it/telefono-adsl/prodotti/tc/tuttoincluso_light/?WT.mc_id=01fw