Shouldn't the shipping options drop-down display until the user decides to check out? In other words, the user should have the option to change their shipping method as they add items to the cart.
I have configured several shipping rules (USPS cheapest, UPS, flat). Here is what happens.
1) I add an item to the cart, and the light box cart panel displays with a shipping choice drop down.
2) Continue shopping.
3) Add another item to the cart (or just view cart), the shipping is no longer editable, but is set to the value that was visible in the drop down after adding the first item to the cart.
On another note, the UPS option I have configured does not always display in that initial drop down - any idea why? I have it configured for all default cases (zero mins and maxes)