I read over on Broadband Reports forum that the ATT Yahoo DSL browser is still not compatible with IE7.
http://www.broadbandreports.com/forum/remark,17128636ATT is rushing around now trying to get it compatible by Nov. 1 when MS is pushing IE7 out to the public via regular security updates. I talked to ATT tech support over two months ago asking if they were working toward this goal, and their reply was "IE7 was still a beta product and they would not modify their browser to be compatible until IE7 was out of beta status".

Well, it's out of beta and they're NOT ready! Why am I not surprised?
I dumped their browser for Firefox 2.0, installed just today.

Surfing faster than I ever have! Don't plan to reinstall ATT browser. Moreover, ATT's browser comes prepackaged with redclientapps, which all pc help forums I frequent have users "fix" & get rid of in HijackThis troubleshooting, claiming it is spyware. Don't want it on
my machine anymore.