NEC EA231WMi blurry with DVI, ok using VGA

Attached a new NEC EA231WMi to my Mac Pro, a 2.66 Quad-core Nelhalem with the NVIDIA GeForce GT 120 video card. Out of the box it was fine with the DVI cable at 1900x1080 resolution. The next morning I changed the resolution to a lower setting, just checking things out. When I switched back to 1900x1080 the text was blurry.
If I switched the setting to PAL the monitor was sharp again. A few times I got the monitor to be sharp again but if I unplugged it to try the other video port it would go back to being blurry. I also have the DVI to Mini DisPlayport adapter.
When I would rotate the monitor settings from standard to 90 or 180 degrees the monitor would become sharp most times, but not consistently.
I also have a VGA to DVI adapter. The monitor works perfectly with that cabling.
NEC tech support is baffled. I sent some screen shots and it looks like they may replace my monitor.
Zapping PRAM did not help. Also tried to boot into safe mode but kept getting a message there was no DVI connection.
Thanks for any thoughts.
Jim

Finally found the solution. Hopefully this will help someone else out.
following trick which has worked for others:
Open Displays preferences and put a checkmark in the box for "Show displays in menu bar"
Under the resulting display icon that now appears in the menu bar, drop down the menu and scroll to "Number of Recent Items" and set it to 10.
Now go back and drop the menu again and you should see 10 choices of selectable resolutions. Often times there will be two for 1920 x 1080 and one of them will be progressive.

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Hi all,
I have a PowerMac Dual G5 and just got a new monitor - an NEC AccuSync ASLCD223WXM. The monitor works fine over a VGA connection, but I wanted to try DVI so I got a Dell cable from a friend who wasn't using his. When I connect the NEC monitor to the Mac with the DVI cable, the monitor seems to switch between DVI and VGA inputs, looking for a source. The Mac desktop is visible for about a second, and then the monitor blacks out and appears to be trying to look at the VGA input (or it could just be going black). Then it switches back to the DVI input, displaying the desktop for about a second. The process repeats indefinitely.
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The Radeon 9600 XT in my Power Mac G5 appears to have a DVI-I port on the back. It has four extra pins around the flat contact. The NEC monitor appears to have a DVI-D port. It does not have pin inputs for the four extra pins around the flat contact. According to this (questionably creditable) webpage - http://www.pccables.com/cables/DVI_cables.html - a DVI-D to DVI-D cable is the right one to use in this situation.
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I recently purchased a BenQ G2400WD 24" 1920x1200 monitor, for use with my May 2007 GMA 950 2.0Ghz. Macbook.
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Concerning: VGA monitors using an Aluminum Powerbook G4 PowerPC 2004 15"-screen 1.5Ghz The DVI (converted to VGA) video output stopped working on this computer after 9 years of service. This raises question 1: Is there any way of fixing this? I've tried

Concerning: VGA monitors using an Aluminum Powerbook G4 PowerPC 2004 15"-screen 1.5Ghz
The DVI (converted to VGA) video output stopped working on this computer after 9 years of service. This raises question 1:
Is there any way of fixing this? I've tried the usual: triple checked all vga cables & devices through trial & error. Bought a new DVI-VGA adapter. Reset PRAM, PMU, etc. Nothing works. Something is probably damaged, because my KVM switch was not working unless I hot-reseated the vga cable into it, leading to this DVI port, and that is pretty rough stuff.
Question 2 (related):
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Thanks for the useful feedback, Knucklesmac. I agree. I must have blown something on the logic board -- because I had a faulty old KVM switch that would not switch between computers without some nasty hot-plugging/unplugging the VGA video cables. (wince!). It's like when Dizzy Dean ruined his arm because a line drive hit him in the foot and he readjusted his mechanics around the injury. I take the blame because this has been a great computer, and does not deserve any blame.
If it will help anyone else reading this thread, C2G (née Cables to Go) has some interesting ideas for still getting external video out of this computer:
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http://www.cablestogo.com/product/30545
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http://www.cablestogo.com/product/40971
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Although I am an HP employee, I am speaking for myself and not for HP.
This question was solved.
View Solution.

Hi Steve,
Only connect one active video cable to the monitor and do not use any adapters.
Use a flashlight and examine the DVI connector on the monitor. Which DVI type is it?
Some of the older HP monitors have DVI issues so you might want to check with HP Support and see if you have one of those models.
An older post a long time back indicated that audio also had to be feed to the monitor (claimed by a poster). If this is indeed true then it's a monitor design flaw. So, you could use a native HDMI cable and test out that claim.
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Can I connect my iPad mini to a data projector using a lightning to 30-pin adapter connected to a 30-pin to VGA connector? Or will this only work with a lightning to VGA connector?

The lightning to 30 pin adapter does not support video as per the item description in the Apple online store:
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NEC EA231WMi blurry with DVI, ok using VGA

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