This is a continuation of a problem that I thought was solved but has reared its ugly head again. The original post was: http://www.experts-exchange.com/Hardware/Components/Video_Cards/Q_25608616.html
which began as this...
My PC is an HP e9150t quad core machine using an Intel i7 CPU (email@example.com GHz). I have 8 GB of RAM and am running Windows 7 Home Premium-64-Bit. I currently have two graphics cards, both ATI Radeons. They are the 4650 and 4550.
The 4650 is connected to two monitors. The 4550 is connected only to my HDTV. I use a voice activation program called Dragon NaturallySpeaking and a "Boom O" headset microphone with an Andrea PureAudio USB soundcard that is plugged into my PC through a USB port.
Approximately 3 weeks ago, I upgraded from Vista 64 home premium to Windows 7 home premium. Previously, I had desktop speakers which nobody could ever get to work with the system setup I had. The last recommendation was that hopefully when I went to Windows 7, the issue would resolve itself. It did not.
Therefore, approximately one week ago, I removed the speakers physically from my system. Please note that for the previous three months, the speakers had not been connected to my PC.
In spite of some great suggestions and attempting everything that we can think of, the problem has not gone away and essentially the only way that I can make the HDMI port the default one is to reboot the system, which is not exactly convenient.
We must be missing something. Does anyone have any idea?