Wait - you're actually running a TH2G DE at 5760x1080 ?
Yes, it's not a typo. I believe Matrox states support for this resolution somewhere if using the current firmware. I just created a custom resolution in the Nvidia Control Panel.
I thought the left-hand bezel issue was caused by the bandwidth limit, and couldn't be fixed. Glad to know Matrox are looking into it.
I saw that somewhere too. This is what they said after testing.
"Please note that we have reproduced this issue in our test lab and we will need to investigate this further to determine what the root cause is."
Followed later with:
"We seem to have found the solution to the problem and should be releasing the new firmware shortly."