Found the tip/advice here :
Looks like Corona is buggy too !
I have sent teh following message to the person who highlighted that ther is a bug in Corona and waiting for his reply
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Hi
Just to check…the changes you proposed or the files to replace ..are they for Joomla 1.015 and can I replace them in the Corona quickstart Joomla files ?
Am I right to assume that I have to replace the quickstart Joomla 1.015 files and this is for a fresh installation ( ie can I change them if I have already got a number of components installed eg DOCMAN, CB etc ) ?
Thanks in advance
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