Help, Prices Gone To Zero!

I have an urgent issue - although I have the "price" and the "list price" set for the product, it is showing as having no price on the front end when I log in as a test customer.

I tried setting it for "allow customer to enter the price" but this does not work - whatever price they enter it adds it to the basket as zero price.

What can be wrong?

Does this product have qty discounts?

although I have the "price" and the "list price" set for the product...

I tried setting it for "allow customer to enter the price"

What can be wrong?

Allow customer to enter the price works only when the price is set to 0

In this case, the price tag on the front-end works erratic - sometime it is showing up as 0 (on the Sale block), sometime price is missing - in the lists.