eewwww at the code of that page
firstly why do you use so many center tags? if you want to whole page centered just have one after the <body> then close it before </body>
anyway the underlineing problem is because you have a mess of tags
code:
<u>
<h1>
<centre>
C.D's,
<br>
Calum's Disco's
</U>
any tags opened inside an element
must be closed before the end of the element
so:
code:
<h1>
<u>
C.D's,
<br>
Calum's Disco's
</u>
should work.
All i did was put the <h1> outside the <u> so it can carry on after the u element ends, and i deleted the <centre> because A) its spelt wrong and B) if you just enclosed the entire page with a <center> then you don't need it there.
finally:
code:
<body bgcolor="black">
<body>
wtf, you only need one body element