Does anyone know of aftersales service problems with digital cameras made by Pentax, Canon or Nikon?

Canon and Nikon are A+++++ with aftersales service. They replace your camera etc with no hesitations. Not too sure about Pentax.

if you are looking to buy, in 2002 we bought an olympus c-700 and it has been great. no problems at all and wonderful pictures.

if there are any
they always have fireware updates on their websites