I have a GTX 750ti, which is connected to a television via an HDMI cable. It worked fine for a while, but the resolution has been severely restricted. Additionally, the sound no longer works through the HDMI. I went into the Nvidia control panel, and it is incorrectly saying that I am using a DVI connection. I have tried uninstalling the display drivers with Display Driver Uninstaller, followed by a clean driver install from the Nvidia website, but to no avail. Any help would be appreciated.