Record has been removed in drop down menu; drop down links inconsistent
I've applied a drop down menu to my template page with dynamic menu item links for both a product category page and a product detail page. This template is applied to ProdType.php and Prod_detail.php.
Except for Greases ('About our Greases' is the first link), the product category menu links only work on the ProdType.php page, but not on the Prod_detail.php page (except the first one, which is the only one that works on both pages). The links look identical, but I get link errors using the other tabs (the error message looks like the link is wrong, but it's the same code as the first one that works. I can monkey with the links so they work on either page, but not both, which is how they worked before. I thought it might be two separate templates, but I'm using one framework theme to update all the pages.
Also, when selecting a product from the menu, I get a 'this record has been removed' error. I've tried numerous configurations for the url parameters, but always get the same error. Also checked the database to confirm everything is spelled right, and they all look good. Tested all the server behaviors, with no errors.