I've just noticed this appearing - and so causing simple links to fail.
I basically have a page set up to add or edit records, and each goes to a confirmation page, saying that the record has been added or updated. All of that is working fine.
On that page, I just have a couple of links to either return to the main listing, or to add / edit another record.
The links in the code just appear as normal, ie mainlisting.php or addrecord.php.
However, when I click on then, they're appearing as mainlisting.php?3E in the browser, and causing a 404 error.
Any ideas what's causing this, or how to fix it?
No idea what code to post, as it's just a link, but will happily post any that people think might be relevant.
Many thanks.