No DVI signal, only analog and TV-out

Hi, I bought a new computer a couple of months ago and have been having some problems with my graphic card (MSI FX5900XT-VTD128). Most of these problems disapeard when I re-installed WindowsXP.
However, about one week before I re-installed WindowsXP my screen just went black when I tried re-installing my video drivers. First I thought that somehow in the pocess of installing the new drivers my video card got overheated or something and broke (highly unlikely, but I have seen strange things in my days).
Furthur investigation revealed that it was "only" the DVI signal that stopped transmitting. I have since then tried to enable the DVI signal with no luck. I haven't found any options in both the NVIDIA drivers nor the MSI drivers in which to choose analog or digital output.
My monitor shows that there is a DVI conneciton, but the screen is still black. In most of my tests I would have DVI and TV-out plugged in so that I can make changes in the settings through my TV.
I'm running out of things to try and I am very open to suggestion, if anyone would be so kind.
ASUS K8VSE-DX
A64 3200+ ClawHammer
Kingsmax SDRAM 512MB PC3200
MSI GeForce FX 5900XT (BIOS Version 4.35.20.38.14, 128MB RAM)
WindowsXP SP2
NVIDIA 66.93 drivers (have tried with MSIs drivers)

Thanks for your suggestions.
I already tried the driver solution, and it didn't work... However, I can try even older driver and see if they will enable the cards DVI signal. The problem with the driver solution is that there is no setting for choosing CRT or LCD monitor. In both dual view and clone mode I can only choose between a monitor and TV output... One thing I found strange though, normally at boot time (before the OS loads) I would get both analog and digital signals, but now there is only the analog signal.
The monitor solution I will try in a couple of days, when I will carry my computer over to a friends place and try it on his monitor. The only problem is that my computer is so damn heavy! :-)
I will keep trying and let you guys know how it worked out.
In the meantime, if anyone else has a suggestion, I'm all ears.

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