I am new to AVS, and this is my first post, so bare with me. have Time Warner Cable in NY, and I recently was upgraded to a Cisco 8742HDC DVR whole house box. There is not enough recording space for my needs, so I purchased a WD My Book AV DVR expander, 1TB. The problem is my cable box is not recognizing it? It is connected with a eSata cable. What am I going wrong. TWC will not offer tech support for a third party product. What am I don't wrong? Any help would be greatly appreciated. Thanks.