No signal message - Mac Mini - Samsung P2370HD - DVI-D cable

I just received my new Mac mini and want to connect it via DVI-D cable to my existing Samsung P2370HD monitor. I have a DVI-D to mini-DisplayPort adapter connected to the Mac Mini and then a long (3-5 ft) DVI-D male to DVI-D male cable connecting the adapter to my monitor. I have checked all connections but the monitor is giving me a "No signal" message. When I unplug the cable from the adapter, the monitor gives me a "Check signal cable" message, so it seems as if the signal is not making it through the adapter to the TV.
Can anyone offer advice? I really don't want to pay for a new monitor.

My brain finally kicked in, and I was able to get the monitor to work by using the mini-DVI to DVI cable included with the Mac Mini and connecting that cable to my DVI-D (male to male) cable. I am now getting a signal to the monitor. Guess I will be returning the Dual Link DVI to Mini Displayport adapter as it was not cheap!

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