Probably being stupid but I've been trying to add a .pdf file as an attachent and can't get it to work.

I went to the attachment button at the bottom of the screen and browsed my C: drive to find the required file but when I preview the post it gives the normal "server not found" message.

Can anybody give me an idiot's guide on how to do this?

I think you can only attach .jpg files

i think there is a size limit for attachments, not sure what it is. if its too large you will most likely get that error...

Ned.