Unable to play/record via dv link LVW 5045GDL+ model

hi I hope some one can help me with the following problem on my lite on. Out of blue when i connect my jvc camcorder via dv link i donot get the highlighted buttons i only get them in grey. However i can safely connect via yellow/red/white and record. Is this software or hardware problem also is fault with dvd recorder or camcorder thanking in advance.