Thunderbolt to HDMI resolution on Samsung monitor

I recently got a Kanex iAdapt Thunderbolt to HDMI adapter and an Amazon HDMI cable to hook up my MBP to a Samsung notebook.
I am getting a picture on my monitor (I saw on the boards that the most commom problem was not getting any picture at all), it's just not setup right. The resolution looks weird and it's really hard on the eyes.
I've tried all resolutions System Preferences give me (1080p, 1080i, 1600x900, 1344x1008, etc) and it's still not looking right.
Does anybody know what might help this issue?
Ps.: The monitor I'm using is the Samsung SyncMaster P2270HN
Thanks!

Nandasaboia,
I'm having a similar problem with a client's mid 2011 17" MBP i7 with thunderbolt connection and a Samsung P2770FH.
I'm using a mini-display-to-HDMI cable to go from the thunderbolt port on the 2011 17" MBP to the HDMI input on the back of the monitor. The monitor works fine in 720p, but in 1080i it is blurry and in 1080p the bottom 2/3 of the screen flickers and goes all snowy every few seconds.
The weird thing is my 2009 15" MBP Intel Core 2 Duo with a Mini-Display port works just fine in 1080p. Everything is clear and crispy just that way you would expect. So it isn't the monitor, and it isn't the cable. It sounds like it is at best a driver issue with sending a Display-port signal via a Thunderbolt port, but at worst it could be that there needs to be a new controller for the Thunderbolt port hardware.
Here's a post about it in more detail. It talks about the Apple Thunderbolt Display not the MBP, but I think the reason for the trouble could be the same. I don't know, I have to do more research on the topic.
http://www.anandtech.com/show/4832/the-apple-thunderbolt-display-review/8
-Foster

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