Our IS2 is continuously failing to cue for some reason. It's been happening for a couple weeks now. We get the local LDL, LOT8's, & the new "cornered LOT8's" during primetime then it won't cue back on for a half hour or hour. I see it every day at random times. Then it will cue right, or sometimes late, for a long time. Can someone take a look at the issue? Thanks!