Yahoo Beta Mail not supporting Opera?

I have created a new e-mail account in the latest yahoo domain(yahoo.in).
However I am able to use yahoo messenger very well but m not able to check mails forwarded on its account.
Everytime I login, a message pop-ups saying Yahoo Beta Mail not supporting your current browser.
what should I do?

Yahoo Mail Beta is the latest one.
If it does not support your current browser, then
you can either download the compatible browser or
continue using the original yahoo mail

If you want to experience YAHOO! MAIL BETA then you may download any of the following compatible browsers:

> Internet Explorer 6.0 or higher (for Windows).
> FireFox 2.0.0.1 or higher (for Mac and Windows).
> SeaMonkey 1.0.8 or higher (for Mac and Windows).

The new Beta of the Yahoo mail service rejects the Opera browser and
Yahoo claims to support only the following browsers:

Internet Explorer 5.5 or higher (for Windows)
Firefox 1.0.4 or higher (for Mac and Windows)
Mozilla 1.7 or higher (for Mac and Windows)
Netscape 7.2 or higher (for Windows)