BenQ FP202W monitor doesn´t work on DVI cable

[Pompilio]

When I connect the monitor with the DVI cable that came
with it, I keep getting a "No signal detected" message.
The monitor works fine with te D-sub cable @ 1680 x 1050
(native) resolution. My graphics card is an AGP Nvidia
GeForce FX5200. I updated the driver at the Nvidia site
and nothing changed.

I don´t have another digital monitor to try nor another
graphics card. The DVI cable was tested by a friend into
electronics and seems to be good. Also, I got a DVI to VGA
adapter and connected the DVI output of the card to the VGA
input of the monitor and worked fine.

When I couldn´t get it to work the first time, I
connected both cables to the monitor to be able to switch
and see what the computer was doing. Later on I read on
the manual that this shouldn´t be done, but it didn´t say
that any damage would result.

Any ideas?

[Will.Spencer]

Originally Posted by Pompilio

I got a DVI to VGA adapter and connected the DVI output of the card to the VGA input of the monitor and worked fine.

Isn't that pretty damning evidence against the DVI input on the monitor?

Is this a new monitor, can you return it? Is it under warranty?

[Pompilio]

I was hoping to get a different answer.
Anyway, it is a new monitor, I purchased it in the States but I live in South America, so not much of a chance to return it, and I´m still not sure it is not a problem with the graphic card. It may not be the right one for this monitor.

[Will.Spencer]

But this card worked fine with the DB-15 input on the monitor, No?

Could you take the computer to the folks at Lapapa and try to hook it up to another DVI-compatible monitor there?