The attribute grid seems to be working fine, but in the admin I am getting the message "Warning: Absolute's Product Attribute Grid was detected, however the Product Option Type for Attribute Grid was not fully installed in the database. Temporarily configuring PRODUCTS_OPTIONS_TYPE_ATTRIBUTE_GRID = 23997" whenever we go to the "orders" area in the admin. I tried reinstalling it. The version I had didn't have a database option to install (no SQL file). I suspect it has something to do with this being an upgraded cart (from 1.3.8 to 1.5.1) and maybe the OLD installation left some DB table that shouldn't be there? But I can't find it. Can you help?