Our mail account is POP/SMTP.

I read (or tried to read) the other post you referred to but it went a
little over my head.

I only get the master category message when I create my own
categories. When I rename the defaults or just use them as they are,
they just lose their colour at next restart.

I guess I figure that I should at the very least be able to colourise
my calendar using the default categories.

Thanks
k