Unfortunately after I followed this post was when I received the warning message.
Is there another way to change the content of the store_closed.html? to include my own graphic to replace the current one, without receiving this warning?
OK. I have checked the code. The system has ability to specify files which should be excluded from comparison. But unfortunately it does not have any hook to add the "store_closed..html" file there
Thank you for that. The one thing I have noticed is that the site does not close using the store closed checkbox. Luckily the website I am working is not in the public domain so no problems there.
I had the same issue with the old site I had there were a few times that it refused to close during maintenance.