It's been about four days now since changing the Adsense default font size and still no change. Anyone else experiencing this?

Thanks.

Should be working by now - I'd expect 1-2 hours delay at most. Might be worth re-pasting the codeHope you get it sorted,
Dickie

Have you tried clearing the cache?
It doesn't take that long.

it takes only just for 10 minute, refresh your page then.......