It didn't exactly give any specific error messages. When I clicked "post" it chucked me to this page:
http://www.v-flyer.com/ErrorPage.htmThe original post I wanted to do had a mixture of plain text and 2 emoticons. I tried to post and it sent me to the error page.
So I saved the post contents, emailed it to myself so I could try to post on another computer (I thought it was something wrong with the PC I was using at the time). I tried with another computer and it sent me to the error page.
So I pasted the contents and removed the emoticons, and it still sent me to the error page.
So finally I retyped the whole thing wihtout emoticons and it worked.
Ah well, all sorted now

Thanks,
Fish