Brand new install of Silverstripe 3.0.3.
Trying to create / edit pages in the CMS keeps making an error message "Error on Line 804 of ..../LeftAndMain.php" appear. This seems to be related to page order / sorting in the site tree. Trying to reorder pages doesn't work correctly they appear to be reordered until you leave the CMS and go to the front end site and / or back into the CMS again and then they are back to their default order.
In addition (I don't know if it's directly connected to this or another problem) changing the URL segment of a page in the CMS reports "Method Not Allowed". The change is not reflected in the CMS (until refresh) but does appear to getting written to the DB.
I am in dev mode but this is shared hosting so I can't get at server logs for any more information.