There are a few similar issues, but none that really seemed to help unfortunately.

```
<html xmlns:fb="http://ogp.me/ns/fb#"><head>
...
<!-- jquery-ui -->
<link rel="stylesheet" href="/sites/mayofest13/js/jquery-ui-1.10.3.custom/development-bundle/themes/pepper-grinder/jquery-ui.css">
<script src="/sites/mayofest13/js/jquery-1.9.1.min.js"></script>
<script type="text/javascript" src="/sites/mayofest13/js/jquery-ui-1.10.3.custom/js/jquery-ui-1.10.3.custom.min.js"></script>

...

```

When the user loads the page, they get:

```
Uncaught TypeError: Object [object Object] has no method 'prop' jquery-ui-1.10.3.custom.min.js:6

```

The worst part is, I don't get this error (Chrome on OS X, Firefox on Ubuntu 12.10, Chrome on Ubuntu 12.10), but two of the site users (both in Chrome on Windows I think) do get this problem.

Originally I thought it was because I was mixing jquery versions (I was using jquery 1.10 or something), so I fixed and now use 1.9.1 - the one this jquery-ui was meant to use I think. Except the users still seem to have the same problem (though it's possible it's a caching issue for them.)

This happens upon page load, not a result of any action that's being performed.

Has anyone seen this? I'm going to go home and try my windows laptop and see if those browsers can trigger this.) I'd post the full site address here, but to get to this page one needs to login, etc.. I can probably set up a page that doesn't require a login, but because I can't seem to trigger the error, I won't know if it has the error.

Thanks,