I had to use a ticket for this, but here is the answer to this:

The described problem should already be fixed in current version of JoomSEF, but there might be some leftover data from older version in the database causing this. In order to fix it, you need to access your database using phpMyAdmin or similar tool and run the following query:

<pre>
DELETE FROM `jos_extensions` WHERE `type` = 'sef_ext' AND `element` = 'ext_joomsef4_jce';
</pre>

Of course you should backup your database before doing this just in case anything goes wrong. You also need to replace the "jos_extensions" in the query to match your database prefix instead of "jos_".

After doing this, the JCE extension parameters will be reset to default and you should be able to change them.

I am having trouble with some buttons in RSTickets when JoomSEF is active. See www.screencast.com/t/X56iWHmzEo

All three buttons indicated show a link of www.virusys.com/index.php# . When I turn off JoomSEF, they work as normal.

I have SEF turned OFF for the RSTickets component in JoomSEF configuration.