Colorado State Extension Electronic filing fail

[SherAK]

I cannot get a Colorado Stare return to efile an Extension. It rejects with the this: This extension does not meet the conditions for electronic filing. Form DR 0158-I is not active, check the freeze box to activate.

The Freeze Box IS checked! I have restarted, Refreshed, logged out, Unmarked and remarked the box. It still rejects. ?????  Any ideas??

[dkh]

Does Colorado require a state extension if no money due?  Indiana only requires a state extension if submitting a payment.  Otherwise, the federal return is recognized as a valid extension for the state.