Can't reply or compose in Yahoo!

[DaveInAsia]

Last week I started getting an error message in my Yahoo! when I tried to reply or compose a message. Here are the errors I get:

Error- 'spellCheck_Click' is undefined
Error- Unterminated string constant

Also, at the bottom of the page there is a yellow triangle with an ! in it...

I'm going nuts trying to figure out why... ?

HELP !