You were lucky to have forums. An older generation had to resort to books and magazines :-)
Actually, punch cards beat this.
That's why Neil J. Rubenking's and Jim Seymour's stuff in PC Magazine had checksums at the end of each line you typed in. Those were the days.
There were printed books where the code didn't work. There were also message board posts that described my exact problem. The only response would be from the OP himself, usually a "never mind, figured it out" thing, with no further details given.