I check my website regularly with Firefox and Internet Explorer 7 (IE7) and usually it's fine. But today, the tables on my pages don't seem to be seeing my stylesheet, and are giving the defaults. Firefox is ok, just IE7. I've cleared the cache, refreshed the page, reset the computer, had a coffee... nothing worked. Then I noticed a Windows update had been done yesterday. I did a system restore to prior to this update, but still the same (refreshed etc again). Anyone else having problems or have any ideas?