[ramcity]

Here is how to reproduce the "your shopping cart is empty" bug in 4.1.0 RC4:

Start with a fresh install - Australian defaults. Browsing the store as an anonymous user it is possible to add items to the cart no problem.

1. Modify default master password
2. General settings: added alternate currency NZD - 1.25 rate. Enable CC info validation. Save
3. General settings: Appearance options. Multiple columns: 3, uncheck display only featured products. Save.
4. Browsing anonymously, choose a product and click "add to wish list". Usual Warning page appears prompting for login.
5. Browse for another product and now click "Add to cart". "Your shopping cart is empty" page shows.
6. Created new customer profile, then tried to add a product to the cart - same result. Add to wish list - ditto.

Clearing cookies, cache, etc makes no difference. The only way to fix it is to do a fresh installation and start again.

Enjoy.