Today the weather was horrible. I had, however, arranged three appointments, so went out anyway.
At stop #1 I was asked about a printer, an Epson S20. It was refusing the recognise the ink cartridges and indicating they were not proper Epson ones. A bit of Googling suggested this was a common problem - http://www.amazon.co.uk/product-reviews/B001CDDC4K - and that a 'lemon' had been purchased.
At stop #2 I initially puzzled over why a laptop was recognising some disks and not others, before being surprised to learn it only had a CD and not a DVD drive. Copying the relevant files off the DVD on another computer, writing a CD and using that worked.
At stop #3 I picked up two refurbished PCs. Back home I set about replacing the installed OS's, but was having problems with the second PC, because it was refusing to boot from either the CD or DVD drives. Removing the CD drive cable caused the DVD to start working, so I presume the jumper settings or similar were wrong. I can't see anyone really using the CD much anyway.
Next question is whether it's worth finding soundcard drivers for two office PCs in an office where the person in charge doesn't like the staff listening to music...