Blank page at wp-admin

Hi…

I just took down a Multisite install because I needed to switch to subdomains instead of directories. There were no other sites on the network besides the main one.

After I set the network back up and started to reactivate some plugins, the wp-admin page simply disappeared. All I get is a blank HTML page with nothing but html and body tags.

I’ve already changed the names of the relevant plugins to shut them off, so I don’t think it’s a plugin. I’m really at my wits’ end otherwise.