Exception 0x80004004: Attempting to Modify Permissions for an Article in Pages Library

Whenever I attempt to modify an article's permissions in the Pages library, I get this error. Any ideas what could be causing this and how to resolve the issue? I have rebooted all of the servers in the farm and reset iis on all of them.

Operation aborted (Exception from HRESULT: 0x80004004 (E_ABORT)) at Microsoft.SharePoint.Library.SPRequestInternalClass.ResetSecurityScope(String bstrUrl, UInt32 dwObjectType, String bstrObjUrl, Guid guidDoc, Boolean bUnique, Boolean bCopyRoleAssignments, Guid& pguidScopeId, Int32& piError)
at Microsoft.SharePoint.Library.SPRequest.ResetSecurityScope(String bstrUrl, UInt32 dwObjectType, String bstrObjUrl, Guid guidDoc, Boolean bUnique, Boolean bCopyRoleAssignments, Guid& pguidScopeId, Int32& piError)

[943 byte] By [JeremyMullinax-Hill] at [2008-2-4]