User Reg page pops message box "Calendar.setup: Nothing to setup..."

do you use any component, module for this ?

No. This was the generic reg form that came with Joomla 1.7. Initially,  when I set up the site it was working fine. The problem cropped up later - after I had added several extensions for various other features. Unfortunately I didn't do them one by one after taking a backup so I can't pin-point exactly which one may have caused the problem.

something with a calendar

try to find in the modules folder the one that you dont use and delete it
sometimes when you unistall a module not all the files of it are deleted

take a backup before

Already done that.

see if you have any plugin anable

The ones I'm using are enabled.

do u have a link?

www.am-top.org

Click on 'Create and account'

i dont think that this is the generic form, you are probably using a component for that
see in your components

The url when going to this page contains '~/component/users/?view=registration'. I looked under the components/com_users folder. Firstly I didn't see anything in any of the .php files that that looked like a ref to a 'calendar' function. Secondly they all show the copyright as being owned by 'Open Source Matters' which I thought was the Joomla organization - that's why I assumed it was the generic component.

BTW, thanks for taking an interest in helping out with this.

Hi CodeOn

you are definately not using the standard create account page as the standard one looks like the screen shot attached, if you go into the administrator panel and mouse over the components menu, can you list all the components?

Thanks
Screen-Shot-2011-11-07-at-7.59.3.png

I'm using Joomla 1.7. Does the standard create account page look the same there too? I do have K2 installed so could it be taking over the user reg functionality?
In any case suppose I am able to determine that it's not the standard reg functionality how does this help in solving the problem?

Here's the list of components.
amtop-components.doc

Thanks for the lead tyronenoel. Somewhere on the Joomla forums I had seen mention of a resolution to this by switching templates. I tried that and, sure enough, the problem disappeared.
I would, however, like to understand the underlying issue here so I'll follow the leads you provided. Thanks again.

OK. I believe I've managed to fix this.
I went into [root]/libraries/joomla/html/html.php and commented out the code that actually invokes the Calendar.setup function (lines 757-770). Not sure if this is going to break anything else though...time will tell. So far all seems well.
Thanks to tyronenoel.

Provided the lead to the correct source files to edit.

perfect thank you, atleast you were able to resolve the issue