Unable to login - frozen on "Applying to sites, please wait..."

HI there!
I just installed the Wordpress Multi-Site Privacy plugin, and was unable to save the options I chose. Every time I hit save, I would get a:

Applying to sites, please wait...
0 of 1 sites updated

error. I rebooted my computer, and now am unable to log-in to the Dashboard. I initially updated my php.ini file like it said to do in the forum, in case I got this error, but it didn't seem to help.
Please let me know what to do - my site is inaccessible. Thanks!