Connecting external NEC PA271W via Displayport cable to MBPr has sleep/wake issues

I am experiencing strange sleep/wake issues after connecting my NEC PA271W 27'' external monitor via a mini-displayport to displayport cable to my MBPr.
Waking up from sleep mode, the resolution of my monitor would be set to 1440x768 instead of the proper 2560x1440 and I always have to go to system settings to get it right.
NEC claims this may be due to cable issues and Apple using a "wrong" mini displayport standard but I have tried 4 different cable manufacturers and this is just strange.
Anybody else experiencing similar issues?

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Macbook Pro suddenly will not connect to the internet via ethernet cable.

I know this is a long shot... but I figured I would give it a try.
My macbook pro suddenly does not connect to the internet via ethernet cable. Please bear with me, as I am not very tech-savvy - I will try my best to describe the symptoms!
I connect to the internet via ethernet (we don't have wifi). It was working before I went to work, and when I came home I suddenly couldn't get anything to work (I know everyone says this, but I truly didn't mess with anything). Internet browsers just think for awhile and then turn up the 'You are not connected to the internet' error.
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Hello all,
As metioned in the subject line, I have the following system configuration:
2008 Mac Pro ( MacPro3,1 ) : 2 x 3.2 Ghz Quad core
ATI Radeon HD 5870
2 NEC PA271W-BK Displays
As many of you know, this ATI video card has 1 DVI-D out and 2 MDP outs. So, if you want to connect more than one display, you must use a MDP connector on the video card, or install another video card.
I wanted to use this video card and connect to these NEC displays so that when it becomes supported in software ( I'm aware of the limited support in Photoshop CS5 ), I will have the capability of displaying 10 bpp output on my monitors. Because of this, installing another video card, or using a MDP to DVI-D adapter of some variety is not an option.
I have one display connected via DVI-D, and the other connected via a MDP to DP cable I bought from Monoprice.com. With this configuration, I had the following issues:
- With display plugged in to MDP, machine would not boot. No startup sound would be played, but the hard drives would spin up.
- With display plugged in to MDP, machine would not wake from sleep. Hard drives would appear to spin up, but no image would be displayed on the monitor.
I found that if I unplugged my MDP monitor, booted the machine ( or woke it from sleep ), and waited for the login screen to be displayed, then I could plug in the MDP monitor and it would work. So what did I do? I crawled underneath my desk every morning, unplugged the MDP cable, woke my machine up, and then plugged the MDP cable back in. I did this for a month.
Apple support said that they couldn't help me, because the Radeon HD 5870 is not officially supported on MacPro3,1; it's only supported on MacPro4,1 and newer.
Of course, I searched extensively on the internet for a solution, and there were some that seemed to work and others that didn't. NEC also published a document that said that these errors occurred with certain types of aftermarket MDP to DP cables, but the one they recommended, the Monoprice.com MDP to DP 6 foot, was the one that I had!
Here are two Apple support discussions on the subject which have been archived:
https://discussions.apple.com/thread/2587838?start=0&tstart=0
https://discussions.apple.com/thread/2583903?threadID=2583903
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http://support.amd.com/us/eyefinity/Pages/eyefinity-dongles.aspx
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Connecting external NEC PA271W via Displayport cable to MBPr has sleep/wake issues

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