My setup has been working fine for the past 2 day watching live tv and recorded tv. However, today, when I tried to watch a show I am currently recording, the remote and keyboard stop responding to input. The show plays correctly, but I cannot exit to the myth tv menu or anything. I know the keyboard is working because I can alt-tab to something else. My CPU usage is at ~ 55%, mem usage is around 80%. System specs:

PIII 933 MHz
196 MB ram
PVR 350, using tv output on PVR 350
remote is the remote packaged w the 350

KM rc5c7

Thanks for any ideas.

Update: after doing a kill -9 on mythfrontend and restarting it, the remote works. Any thoughts on why it would lock up in the first place?