jfusco

– WordPress up to date? 3.5.1
– NextGEN up to date? 1.9.11-beta1

(please confirm the following, with your server host tech) :
– MySQL up to date (5.2.4)? Yes
– PHP up to date (5.0)? Yes
– The mod_rewrite Apache module activated? AFAIK
– PHP Safe Mode OFF? AFAIK

and if you’re willing to share:
– Who are you hosted with? GoDaddy
– What theme are you running? Rockwell v1.0
– Which plugins do you have installed and activated? Akismet, Hello Dolly and Jetpack are all installed but deactivated
– Does this error still occur if you switch your theme to the WP default, and deactivate all plugins except NextGEN Gallery? (*be sure to clear your browser cache and reload your site after deactivating) No. It works with the default theme (Twenty Eleven). Switching back to the Rockwell theme reproduces the problem.