"To be honest, I've always felt that block is something afflicting only those who don't depend on their writing income to pay the mortgage/school fees/grocery bills etc." - Anne Weale, novelist.
There's a lot of truth in that! There's also lots of advice out there on how to beat The Block. Here's my tip:
Imagine, instead of a writer, you're an athlete...a long distance runner perhaps. You've strained a calf muscle, you want to run but you're incapable, or at least when you try to take a few paces, it hurts like hell. What do you do? Rest it a while? Give up running?
The professional athlete knows the best way to heal is to keep it active, get a good physio on the job and slowly he'll achieve peak fitness once more.
That's what writers should do. Don't stare at a blank screen/page and groan in despair, massage that brain! Write anything...an email, update your blog (cough!) WRITE ABOUT YOUR BLOCK IF YOU WANT, BUT WRITE, DAMN IT!