Product not adding to Cart
I'm stumped.
I am moving a clients site from another server to my own.
I exported the MySQL db to XML and imported it into the new server db.
I took an exact copy of all files and uploaded it.
I edited the connection string to use the new information.
Product displays fine on listings page.
Product displays fine on details page.
Admin pages work. I can add, remove, update product no problem.
When I click Add to Cart, I am redirected to the correct cart page but it shows. The cart is empty.
I've replaced the Add to Cart functions.
I've replaced the Cart page.
Nothing changes. No error, just an empty cart.
Both servers support the same versions of PHP (5.)
Anyone have an idea of where to start?