I just found out some more about this. It seems yahoo is not the only thing that is sufferign from this issue. It seems that various web-based text message type windows are comming up blank.
OS: Windows XP Home.
I am having problems with yahoo messager as well as the email. When I sign into the yahoo.com email area it goes to a blank screen. It does not give any errors, just a blank screen. For a while it would give me a message somewhat like " Your browser does not support redirecting." That is not exactly what it said, but something near it. Now it does not even give me that error message. I have tried updating Internet Explorer, re-installing a new version of ActiveX, resetting all Internet Explorer settings, and have run multiple anti virus/spyware/malware programs. Still nothing. As for the messanger.... Today is when it started acting up. When I try to send messages it, just like the email, is nothing but a blank page. I can not even see my own text on the message window and am unable to recieve messages. Does anyone have any experence with this problem or a problem like it? If so please give me any info that may help to repair the problem.
Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic