Editing Posts

[Drew]

Hello,

Has editing of posts been stopped? I used to be able to do this, but it seems I cannot anymore. At the bottom of a thread, under 'Forum rules', it says, "You may edit your posts", but I cannot now do this. Is it just me?
(I should add that I can edit for a while, after I have posted, but that this capability disappears after a certain amount of time).

I would be grateful for any advice.

Many thanks,

Chris