Well. Firstly I have Firefox version 3.0.1.
And I can't remember when this started happening, but it's very recent. But basically everything on this whole forum looks larger and pixelated.
Screenshot:
Now, I'm pretty sure it's just TiBB (well, so far).
I've cleared all my cookies etc and it's still the same.
Edit: Ok, this is pretty difficult to explain. But even on my screenshot there, when I view it, it looks large and pixelated... (the actual screenshot) but when I view just the direct link of the pic it looks normal.
So it's literally all images that are doing this on TiBB.