I seem to have the same issue regarding my initialization code for the datepicker ui. I call it in my footer.php file. Right now and I can see that the specified options I set (within the initial file), but for some reason calendar.png does not load.
The file works, but there is a conflict with the image- I get the alternate text instead ("...").
I have copied the path of the image set by my source and pasted it into a new browser window and the calendar.png loads, so I know that is not the problem. I don't see how initializing the ui overwrites and conflicts with the original ui code specified in the head/footer.
I wish I had this issue online, but this problem is on a local environment.
Here is a screenshot with the initial not loaded properly. ---> http://db.tt/7W6wHVnl
Notice the calendar image loaded to the right of the field? Now this photo shows the opposite, why isn't the image loading?
I have used a number of options to solve this solution. I have tried overwriting the css property of the overflow ---> http://pastebin.com/81esgCgv
it to work, this is what it looks like ---> http://pastebin.com/cxw6SSRb
This is a default twentytwelve WordPress site I have been testing on. To ensure that all the custom files created never get lost I put them all into a twentytwelve-child folder so nothing gets over written.
http://pastebin.com/5v6CQtzp is imputed into the -child directory, along with everything else. Again I apologize this is on a local machine, maybe I can give a link for the .zip import of the WordPress setup I have?
It is frustrating that I have to discuss all this technical stuff I have been working on all day.... I appreciate all the help :)