WHere in code would free shipping over amount be set?

[milauskas]

In the store I've built any orders over $100 receive free shipping (for next day UPS). I also have two other shipping options; one for local delivery (a flat $19.95) and a customer pickup option (always zero, since they're picking up the items).

 

It's the Next Day shipping that is incorrect. It's a table rate module. Orders over $100 SHOULD be charged $39.95 (and that's what I put in the table). But they're currently being charged zero if they're over $100.

 

What code affects this? I don't know what I altered, if anything, to enable this free shipping, but I don't want it. What pages should I look at?

 

I've looked at checkout_shipping.php, but I don't see anything there that is relevant. Is there another place I should look? Help is DESPARATELY needed and greatly appreciated.