When I click on the "Answer" button I get the message "Internet Explorer's unable to access." please help. ?

Your description points to a corrupt cookie in your browser cache. Try to do the following: close all browser windows, then open a new one. Click on tools at the top of your screen, go to internet options. In the drop down menu go to "temporary internet files", delete all cookies and other temp-files.

http://help.yahoo.com/l/us/yahoo/mail/yahoomail/se...

http://help.yahoo.com/l/us/yahoo/mail/original/tec... --- cache clearing for different browsers

If cache clearing doesn't resolve your problem, I suggest to go to this online help form and describe your problem:

http://help.yahoo.com/fast/help/us/mail/cgi_ymail

You could also send a mail to e-mail support:

mail@cc.yahoo-inc.com

or

mail-classic-errors@cc.yahoo-inc.com

or call Yahoo! Customer Service: 1-408-349-1572