The button on the page is not doing a postback after I add
<script type="text/javascript" src="scripts/jquery.blockUI.js" />
to the header of the aspx page. If I comment this line out it works. I do have the jquery.blockUI.js at that location. Any suggestions?
You can't have self-closing <script> tags...you'll get some odd behavior and missing files you think are being loaded. Your tag should look like:
<script type="text/javascript" src="scripts/jquery.blockUI.js"></script>