Problems with typing in/Editing Posts

Hi Everyone
Recently Ive been having problems typing into the forum, so much that Im using Notepad for this one. Im finding that
when I enter text, individual characters will frequently be ignored, so you get a lot of typing errors (like once every
4 or 5 characters).
Also, having completed a post, if I select Edit to fix an error, the entire contents of the post are removed and nothing
can be typed in! If I close and reopen, the post remains in its pre-edit state.
Apart from on this forum, I have no similar issues with entering text.
Has anyone else had similar issues, or know what is causing this?

Hercules

Just thought Id see if the problem is still there. It doesn't seem to be if I use "reply to thread", as opposed to "reply" or "reply with quote" which I normally use. Ill post this, and try the "Edit Post" option

No - If I use "Edit Post" on #2 (which is available) it removes all the text entered in the post, without providing any edit facility ???