Radeon HD 5830 Dual display not working

This is possibly the most annoying problem I've had to deal with as far as computers go. I'm currently running a Radeon HD 5830 graphics card on a Windows 7 64-bit system with an i7-4770k cpu and msi mpower z87 mobo. I'm running my main monitor through one of the DVI ports, and the problem arises when I try and plug a second monitor in to the HDMI port on the graphics card. No matter what I do, I cannot get anything to output through the HDMI port to my secondary HDMI monitor. Not only that, as soon as I plug in the HDMI cable, my DVI monitor starts to flash on and off over and over again until I unplug the HDMI cable again. I've tried both DVI ports, I've tried multiple HDMI cables, I've installed, updated, uninstalled, and reinstalled the drivers I dont even know how many times. I have had a little luck running dual displays if I do the primary monitor through DVI to the graphics card, then use the integrated graphics HDMI adapter to the secondary monitor, however when I do that, I cant get sound to go through the HDMI port no matter what I try. At the moment, buying a new card is not an option (soon, hopefully) but if there's any way to get this working until then that would be awesome. I've searched and havent found a problem like this in any of the troubleshooting forums I've looked through, so I'm assuming the card is just on its last leg, but if anyone has any ideas it would be much appreciated. Thanks!
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More about radeon 5830 dual display working
  1. Do you have the Eyefinity software loaded?
  2. I did, and I've since uninstalled it trying to get everything to work
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