Portal 2 no longer loads for me.
When I click on the icon, the dialogue box briefly appears on the screen as usual, but then nothing happens. Nothing loads. No error message. If I repeat it, the same thing happens.
Googling yields nothing. Steam forum does not offer any advice, and the Steam FAQ does not offer any suggestion either.
I restarted Steam already, but that did not help. The problem started this morning. Last night, it was working fine.
Anyone else having this problem or can offer any solution?

