Cannot print from EMI CD

I've bought at least a dozen of the EMI Home of Opera sets, Adrian3. I haven't tried out the CD Rom on every one of them because I already have a libretto for the opera in question. Of those I tried only the CD Rom out of the Peter Grimes set seems defective. It loads or in other words the artwork is displayed on screen but neither the synopsis or the libretto function buttons operate. I gave up in the end and bought a copy of Britten's recording on Decca which has a printed libretto. It may be easy to follow the words when the principals are singing without a libretto but less easy to make them out during the plentiful choral passages.

I would be very annoyed if I couldn't access the libretto on one of the sets where I don't have an alternative recording - Die Frau ohne Schatten comes to mind.

It would be interesting to hear if anyone else has experienced the same problems and if anyone can offer a solution. If nobody can, rather than returning the sets to the retailer - although that's an option - we should probably contact EMI direct. I should warn you though that from previous experience of contacting the manufacturer the likely response from them would be to take the matter up with the retailer for an exchange. This is a bit difficult to do if the receipt has not been retained. I can already picture the look on the faces of counter staff when we tell them the music discs play perfectly but we can't access the libretto!