Starsky, Look at the first thread on the top of this (Newcomers) page. There is a list there. Sometimes the abbr are for posters names like PDT is Puppy Dog Tails.
Cheers
ps You seem a little young to remember Starsky and Hutch?
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.
