Its dead simple Ironbutt:
1 - Find half an hour of your busy little life to empty your head, and sit down in front of the computer.
2 - Log on.
3 - Whistle up the pprune site.
4 - If you have time, go through every forum. You'll soon get to know which ones are of interest to you.
5 - Thereafter, only enter those forums which you like.
OK that's 5 instructions, a little more than most of us are trained to cope with at once, but you'll get the hang of it.
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It wasn't me.