Jixson
Pro
I don't know about these DRM issues but GTAIV is definitely one of the worst ports ever...
That said most modern PC's should be able to run it now and there are config file workarounds for those that struggle on the processor side...My joint isn't really that powerful (ATI 5870, Phenom II X6 1090T Processor, 8 GB of ram) and I run a heavily GTAIV with high settings and the ENB graphics upgrade...
This is one of those games where you might need to play around with it a bit in order tog et it to work properly...If you like GTA it's definitely worth it though just for the mods...
If it opened and crashed, or lagged like a bytch(like batman did until I tweaked stuff) I can work around that. This, myself and others can't even get to open.
Acting all Vampire: The Masquerade on my ass, and that actually started running after I had upgraded my graphics card.