I get the "You do not have sufficient permissions to access this page." every time I attempt to click on the options page of any plugin. I've been through so many fixes I don't even know where to start. Many people have had this problem, but with older versions of wordpress.
I ran into this problem for the first time when upgrading WordPress. I upgraded from 2.6 to current. I then got the "You do not have sufficient permissions to access this page." error at the plugin options page. I thought it was file permissions so i changed everything in the plugins folder to 755 recursively. No change.
I also tried updating the database. No change. I then tried to create a new wp install manually. After the install, no change.
I THEN tried to create a new install through godaddy. Same thing.
I don't know what else to do. I feel like I'm making a simple mistake somewhere, but I don't know where that somewhere is.
ps: the plugins worked on 2.6.