Hi, For the past several months I've had an unusual problem on one of my HR-21s. I've only noticed it on the one box because it only happens on Fox and this is the box I record the networks on. Whenever I fast forward (2,3,4) or 30 Slip, the bottom 85ish% of the screen freezes. Just a band on the top looks normal. When the commercial changes to the next one the main section of the screen will update the frame then freeze again. Has anyone else seen this or know how to fix it? Thanks.