This still isn't making sense to me. Here's the pricing on my Products / Services for an SSL item:
As you can see, the base price is set to zero, as usadomains suggested. Here's the group, showing that the option group is assigned to the product above, and that the name of the option is ValidityPeriod|Validity Period:
Finally, here's the options for that group:
The problem is, when I go to my cart, the Billing Cycle shows "$0.00 USD + $10.00 USD Setup Fee One Time" and - more alarming - the "Configurable Options" shows the Validity Period as 1 year, but with the MONTHLY price:
If I then click "UpdateCart" it charges me the monthly amount instead of the yearly amount (plus the setup fee, of course):
What am I doing wrong, and how should this be set up??