Validation/LiveQuery incompatibility with jQuery 1.4.2

Validation/LiveQuery incompatibility with jQuery 1.4.2

This is hard to describe, but here goes: I have the latest versions of jQuery (1.4.2), Validation (1.7) and LiveQuery (1.1.1). I'm in an ASP.Net environment (with VisualStudio 2008 Pro).

First, I use LiveQuery to set the CSS on all buttons, so they look nice and themeroller-ish, even after a partial-page postback on UpdatePanels. This has always worked great.

Second, I have a number of pages where I use Validation for some fields. These also worked okay.

The problem started when I upgraded to jQuery 1.4.2: On pages with validation, when I click the Submit button the page posts back and fails validation (on purpose). Then it redisplays the UpdatePanel within the page. Lo and behold! the button's CSS that was set by LiveQuery is gone. I if go back to jQuery 1.3.2 it works fine.

My existing code is much too big to post here (sorry). Any ideas?