Siva's blog

Google announced it would stop supporting old browser because of the recent bug attack from Internet Explorer 6. On its post in Google Docs Blog, from March 1,2010 , products like Google Docs, Google sites, Google Application will not be working in old browsers. HTML 5, advanced Java script , etc are not supported in old web Browsers. It’s better to change us according to the current Technology Revolution :D .
So please update to enjoy surfing and working with Google .. Here is the list of supported browsers
There are many choices:

Microsoft Internet Explorer 7.0+
Mozilla Firefox 3.0+
Google Chrome 4.0+
Safari 3.0+

Users who use Google Application will have received a mail from Google about this issue.