admin-ajax.php server error in dashboard

I have a theme conflict between Gravity Forms and the Gantry Theme Framework for Wordpress. When both are activated, I cannot successfully complete any AJAX driven edits or saves in the WP admin dashboard, like making "Quick Edits" to a Page or adding new Pages to an existing Menu. Also I am unable to save any changes I make to the page layout regarding widgets, because they too are saved via AJAX.

Specifically, when I try to do these simple AJAX saves in the WP admin dashboard, I see this error in the Firebug console:
POST to http://example.com/wp-admin/admin-ajax.php 500 (Internal Server Error) at load-scripts.php:4

I have isolated this issue to when both Gravity and Gantry are activated. It appears to be a javascript enqueue related error, but i'm not sure where to make the changes talked about in the following articles:
http://pippinsplugins.com/loading-scripts-correctly-in-the-wordpress-admin/
http://www.prelovac.com/vladimir/best-practice-for-adding-javascript-code-to-wordpress-plugin

I'm about 97% finished theming using Gantry, so deactivating the theme and keeping Gravity Forms isn't really an option at this point. If possible I'd like to keep both activated and find a workaround that will prevent the conflict from happening in the admin backend.

Any help or advice would be much appreciated!

Thanks,
Wesley

David,

Thanks for the quick reply. I have No-Conflict Mode turned On so that it will not load extraneous scripts and styles. When I installed Gravity Forms initially, No-Conflict Mode was Off by default. I also had my Gantry Theme activated while installing/activating Gravity Forms. When I activated Gravity Forms, I got the white screen of death in the WP admin dashboard. I had to manually delete the Gravity Forms plugin directory, deactivate the Gantry theme, activate the Twenty Eleven theme, and THEN re-install/activate Gravity Forms and turn No-Conflict Mode On.

Though the second time I didn't get a white screen of death when I installed/activated Gravity Forms, there still seems to be a conflict when I activate my Gantry theme after activating Gravity, as mentioned in the original post.

I appreciate your help and Happy Thanksgiving!
Wesley