After playing RO for a certain amount of time (varies between ~20 minutes and several hourts), RO will lock up the computer. Symptoms are that sound stops playing, graphics freeze and the computer completely stops responding; a reboot is required. Interestingly enough, this problem has never occured when in practice mode, only when playing multiplayer.
My system: AMD Athlon64 3000+, nForce3 mainboard, 1GB ram, XFX 7600GT, WinXP SP2, with the very latest nVidia drivers (163.71) installed. I initially suspected the video card, since RCTW:Enemy territory would also randomly lock up my machine (though it continued looping audio), but underclocking the videocard fixed that problem (it seems XFX made a bunch of cards that are overclocked with overly aggressive timings by default), and I'm not experiencing this issue with any other game.
My system: AMD Athlon64 3000+, nForce3 mainboard, 1GB ram, XFX 7600GT, WinXP SP2, with the very latest nVidia drivers (163.71) installed. I initially suspected the video card, since RCTW:Enemy territory would also randomly lock up my machine (though it continued looping audio), but underclocking the videocard fixed that problem (it seems XFX made a bunch of cards that are overclocked with overly aggressive timings by default), and I'm not experiencing this issue with any other game.