Cannot`` reply`` in Yahoo mail

john sing

New Email
I use Windows 7 and Internet explorer. For the last week I have not been able to REPLY to any Yahoo mail. I can compose new email and read Yahoo mail but when I click the REPLY icon I just get ``LOADING``ICON that won`t stop. I have restared and rebooted computer dozens of times, I have changed to ``plain text``, I have cleared history, cache, cookies. I have not loaded any new programs. Yahoo email was working fine on this computer for 10 months. then this happened????? Any help or suggestions????