UBB.threads PHP Forum Software Community Forums UBB.threads 6 Version 6 Bug Reports 6.5.2 cannot add graemlins. Verified here as well.

Found it..

Edit instant_markup.php (language file) ENTERURL2

It has:

Now enter the title of the webpage you wish to reference. For instance, if you are linking to the URL for UBBCentral, you might use the title "UBBCentral Homepage".

I removed the " and it works..

Now enter the title of the webpage you wish to reference. For instance, if you are linking to the URL for UBBCentral, you might use the title UBBCentral Homepage.