I opened a case for this as well but wondering if anyone else has run into this. I am new to configuring cameras so of course my best course of action is compare configuration to an existing one that is working. I have a 2930 PTZ that came in as a replacement for a dead one. I compared its configuration to another one and eventually got it set up the same. Initially everything was working as it should before I configured it. After I configured it and took it out to its final home, I ran into problems. When it boots up, the OSD is on screen but is all garbaled. Also, when I go to the OSD screen in settings, I can't get it to come up again. Additionally, I couldn't pan the camera from within the web administration, though I could do it from inside VSOM.
I eventually found from comparing to another camera that disabling the SSL login now allows me into the OSD at will, but it is still garbaled. I had the SSL initially set up as required with a self-signed certificate. See below for example of what the OSD looks like. Also, I tried this through IE 9,10, Firefox & Chrome, all with the same results.