Here is my site:
http://sec.forsakendreams.de/roster/index.php

The outer borders doesnt take the right colour. Although I worked with CSS and tried to alter it. But it is not set my CSS, since I tried deleting the CSS style sheet for a while and then transfering it back to test it out, and when it was deleted, the borders still didnt have the colour I adjusted to them either.

Something must be overwriting it. Another weird thing is that IE shows it as white border while Mozilla shows it as text coloured border.

Any idea what could be causeing it?

This isn't the original version of style.css. If I scroll down to the .syellowborder definitions, some contain the proper background image define, but some contain a different definition. Try putting back those.

That won't solve the problem, sicne I edited those after I made this post.
I know exactly what I edited though =)
I didn't like the imge borders and simply edited them so they are in the right colour.
I am speaking though of a border I implemented myself, it is around my site.
It doesn't show the colour I set it to have.