Yesterday we returned home to find cable box/DVR not functioning. All it is showing is 88:88. It will not respond to any commands from the remote. Checked the remote and it works fine on other cable boxes. The only other thing I have noted is that every few seconds some very small characters appear to the left and right of the 88:88. But are so small and disappear so quickly can't read them. Any body else seen same problem and has a fix? Thanks.