Yahoo Mail Problem? (red highlight)?

I have problem to type an email! When I try to type any word it makes some other words highlight, for example if the I type interesting, the word internet changed to red( the word internet that is in top of the page) or if I type why, the word yahoo changes to red, and if I push enter, it goes to some other pages.Yahoo Mail Problem? (red highlight)?
run a virus and spyware scans...





i had this happen to me before...but with msn...

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