M860TU GPU can't support 2 external monitors!?

Did I just shoot myself in the foot? I bought 2x 24" LCD monitors, and salivating in anticipation with hooking it up to my M860TU I'm instead met with this:


(I can only ever select a combination of one external, and the laptop internal)

Yet I know I've seen threads indicating or at least hinting that the M860TU and it's 260M is capable of two externals, one through the DVI and the other through the HDMI. I had this planned for years since I got it, only to be stared in the face with this souless dead black panel, mocking me "2 displays forevermore, only this and nothing more!"

Help! what am I doing wrong!?

 

In theory you should be able to support 2 externals with the internal display disabled (max 2 monitors at any time), however I am not sure exactly how to get it working.

 

I thought so to, but certainly the drivers didn't want to cooperate. So I did a google search and found a few threads from these forums and others stating the catch:
The 260GTM can support two displays *however* necessarily one of those displays has to be the internal connector and the other one either the DVI *or* the HDMI, but both outputs cannot be driven at the same time.

Maybe it was wishful thinking when I first bought it, maybe I glazed over the details, but I really did think I had read a thread that said it was possible. Unless someone has rigged something or has this setup and knows otherwise for sure, I have no idea what I am going to do with this second monitor now except stare into its unflinching blackness.

FYI to mobile GTM owners: it's DVI or HDMI, either or, but not both

 

I think what it was is that the d900 series could drive one over DVI and one over VGA at the same time with the internal disabled.