man this sucks. i have comcast high defenition cable and today i tried to access the ondemand cable. i was able to access the on demand channel 1 before, so today i came from work and i tried to go to the on-demand channel and it shows me an error saying:

we're sorry. there has been an error processing your request. please call your cable operator and report that error 4 has ocurred.

what should i do?