I am having troube with the simple Java functions on my website.

When I initially install modules, the java functions that simplify the use of HTML when writing a message or news article, worked fine.

Suddenly they have stopped working, and I am not sure why.
In some cases they work fine from the administration menus and just don't seem to work in the members pages.

In some cases they just don't work at all.

This has happened to me on two seperate sites, which would indicate that I am doing something wrong somewhere, but what?

any help would be greatly appreciated