If the 'saved form information' box is checked under Google Chrome, it seems that it effects how some sites are subsequently displayed. e.g.
Gmail only works in Chrome in the Basic Html view. The BBC iPlayer doesn't appear at all. The only way I have found to get round this problem is to reinstall chrome.
It seems a consistent problem and can be replicated anytime. I'm using Vista Home Premium SP1 and it's fully up to date.