Selecting USB input port in Sage for USB-UIRT slows system

I have successfully installed the USB-UIRT controller and it is able to send channel change commands to my cable box.
What is NOT working is usinb the USB-UIRT to receive from my remotes. There doesn't seem to be a lot of information out there about how to go about configuring this, so I may have some odd setting incorrect.
From what I have been able to gather, you simply need to go into SageTV's advanced config and under the commands section, set the IR input to USB.
As soon as I do this on my system, the system starts chugging like I'm encoding a DVD in the background. Sage's menus get extremely slow and unresponsive. I CAN navigate with the mouse or keyboard, but screen updates are a good 5-10 seconds apart.
Clicking into the learn commands screen does nothing. Sage will NOT see my controller. The USB-UIRT IS seeing the IR as the red LED lights up whenever I press a button on the remote.
If I set the IR input selection on Sage back to None, it immediately speeds right back up.
I'm using the latest SageTV as of this posting, (V2.1 i believe), and I have done a complete reinstall of the SageTV software, including deleting my Frey directory and reinstalling from scratch.
I have also removed the IRRemote software from Hauppage, as well as unplugged the IR recievier from the PVR-250 card.
Any ideas? This is driving me insane!
What is NOT working is usinb the USB-UIRT to receive from my remotes. There doesn't seem to be a lot of information out there about how to go about configuring this, so I may have some odd setting incorrect.
From what I have been able to gather, you simply need to go into SageTV's advanced config and under the commands section, set the IR input to USB.
As soon as I do this on my system, the system starts chugging like I'm encoding a DVD in the background. Sage's menus get extremely slow and unresponsive. I CAN navigate with the mouse or keyboard, but screen updates are a good 5-10 seconds apart.
Clicking into the learn commands screen does nothing. Sage will NOT see my controller. The USB-UIRT IS seeing the IR as the red LED lights up whenever I press a button on the remote.
If I set the IR input selection on Sage back to None, it immediately speeds right back up.
I'm using the latest SageTV as of this posting, (V2.1 i believe), and I have done a complete reinstall of the SageTV software, including deleting my Frey directory and reinstalling from scratch.
I have also removed the IRRemote software from Hauppage, as well as unplugged the IR recievier from the PVR-250 card.
Any ideas? This is driving me insane!