A few weeks ago the closed Captioning on my Humax DRT 400 stopped working. Note this is an older model TiVo and does not have its own CC on / off option in its settings. Checked my TV settings CC is on. Tried terning it on and off no change. Checked A/V wires no problems. I update Via Internet, and system info says updating is fine. I am wondering if this is a TiVo software problem? Has there been a recent update to TiVo software? Is anyone else with this model TiVo having this problem? Any suggestions? Thanks in advance for any help given.