I may have found the cause of my USB conflict and hopefully yours too - is anyone else using BackBlaze cloud back-up? Here is the email I sent to Backblaze support and also to Canon support (who have been useless as reported here). Hopefully betwee...
This is so frustrating. I have tried all of the things in this thread - many times. Sometimes resetting the MacBook's USB ports helps - but currently nothing seems to work.
