For the brave who dive world-first into 64bit Win7, I'd say all new hardware or buyer beware

doing some reading and checking some other dvi cables i have it seems the DVI-D should be working fine pre-windows. what a few sites suggest is that your video card should know that the analog pins aren't there on the DVI-D cable and send the video out over the digital pins.
Correct, except for the size problem. With larger outputs there can be the need for additional resolution conversion that easily happens once in Windows and might
possibly happen straight from the card. Sounds like this monitor really needs to leverage the DVI-A channel
prior to having the assistance of drivers once they load. It's possibly why your straight VGA has no issue - no digital resolution conversion necessary. It is, after all, the monitor's responsibility to handle the initial rendering prior to additional driver layers stacking up at boot:
It used to be that scaling was not even considered an important matter and was left ignored but as digital flat panels increased in popularity it became something that manufacturers worried about. The DVI specification places the duty of properly scaling and filtering non-native resolutions where it should lie, on the monitor manufacturer's shoulders. So any monitor that is fully DVI compliant should handle all scaling/filtering itself and obtaining a relatively nice scaling algorithm is not too difficult meaning there shouldn't be much difference between monitors in this respect (although we're sure there will inevitably be some).
also, i checked the cables for the other 2 DVI monitors i have and they are both dvi-d cables which means they should be having the same issues, no?
Size matters

i don't know much about this so im grasping at straws here. it seems odd though that a manufacturer would sell a monitor that 99% of people out there would immediately consider to be faulty upon plugging it into their pc and not getting video.
99% of the people won't have bomb-ass video cards and will see their VGA working like "magic."
im more or less trying to avoid having to box this big bastard up and ship it if i don't have to
You can also try going DVI-D from your PC to HDMI on your monitor (cable conversion, around $50). But again, this is a conversion and I'd simply hate to have my primary on a converted channel. So since this 24" does
not have a dual link (DVI-I) you're possibly limited to VGA/HDMI conversions, secondary monitor option, or perhaps the following:
Try getting the very latest drivers for your 24" and your video card - while it's plugged in as a secondary. Once everything is up to date, then try switching it back to primary and see if it flies. Otherwise I'd probably go for the return option. I mean 24" is nice and all. But with a 5ms refresh rate hell why not just settle for VGA output?
Go 2ms refresh - max contrast ratio - max resolution - and settle for 22"

Your games depend on it and I'll bet you'd be much happier.