First of all, I wanna to say thank to all your guys urgent reply.
>Yahoo!, not so promptly, fixed this server side. So it can no longer be >done. Some people might see these effects on their own PC
I have to seen it’s appear on my client. I pretty sure my client just install Yahoo normal as it is, no features add-on. I see marquee, DHTML running in conversation box. How can it go ?

>I think you are confusing colour and font tags with normal HTML.
I’m not confused about HTML tag and font tag, dear. I can make some stuff with fonts tag in Yahoo messenger .
like this line: Y and we get Big heart instead Y letter.

Thanks for understand me