I am a site collection administrator. When I go into SharePoint Designer 2010 I can see everything. However, when I edit a Master Page, or Page Layout, I get the following error:
You do not have permission to do this operation. Ask your site administrator to change your permissions and then try again, or log on with a user account that has this permission. To log on with a different user account click OK.
I have made sure that all the files on the site are checked-in/approved, and still no luck.
Anyone have any ideas for things to look at, or try?
Note: This looks to be the same as this issue, just in 2010.