SharePoint 2010 migration - web part gallery shows "This item is no longer available ... Click OK to refresh page

This error IS on the WEB PART GALLERY itself.  I have dealt with it on other libraries by deleting the listview web part and adding a dataview web part. 

However, if you try to add a dataview web part the web part gallery  the gallery is not available under lists or libraries so their is no way to add.

I have also tried creating other views as suggested by some articles

I have the view application pages permission as suggested by other articles.

I believe I have read every article related and am unable to find an answer. 

Any help on this would be appreciated. 

As a side note, I have an option called "Manage Columns" when I go into the library settings for the Web Part Gallery.  Is this normal or is it some sort of add on. 

Thanks for listening ==Lee

--Lee