Full reinstall, digital channels broken

[miriad]

About a month and a half ago, I got 2 Pinnacle HDTV PCI cards (the nice $50 ones on woot). I installed them and a small UHF antenna, pulled up the Sage EPG data for Chicago - Digital Broadcast (I also have a semi-cable service on my analog tuners, so I did not want the analog on these cards), and got a channel listing with all the digital channels with logical mappings to their correct number (5.1 instead of 29.1, etc), as well as possibly some physical mappings.

Yesterday I did a full system reinstall (one of my HD's crashed), installed Sage, downloaded the same Chicago - Digital Broadcast channel lineup, and got a set of channels without any mappings (logical or physical). This wouldnt be a problem normally (As I can do the logical mappings myself, it would just take a little time), except now when scanning for channels, no channels are found.

Using the Pinnacle software, the cards find every station that they should (Except WBBM, but thats an entirely different argument for a different day).

Why wouldnt sage find these channels, and why wouldnt the EPG have the mappings like it did before?