are you a Yahoo! Mail user?can you help me?

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I extremely hate Yahoo! Mail for one thing. All the old messages except the newest one appear with symbol(s) ''''. This is very annoying. I love Hotmail because it gives you the choice of ''using a line of dashes'' or ''symbol '' or ''none of the both'' to separate the original message text included in a reply. But I am a Yahoo! user and don't wish to switch to Hotmail. Do you know of any solution to this problem? Please help me.