Dear Community, Just now, I have installed the "4GB pack" hoping to increase the performance of SC4. I've got 4GB 1333Mhz RAM and 3.2 Ghz i3 CPU on my current computer. Also, we're talking Windows XP. I can generally run the game successfully and all animations are A-OK. The problems appear when I scroll the view. Especially in the up-down direction - it's a nightmare... Scrolling is always choppy, no matter what I do and what graphics options are (un)checked. The same goes for time-of-day transitions. Whenever the game transfers from day into night, the animations freeze every two seconds for a little bit, until the transition is complete. I was hoping that the 4GB patch would help resolve these issues. No such luck. My RAM activity barely exceeds 400MB... This is why I'd like to know whether this is one of the "it just has to be this way" situations, or whether it is me doing something wrong? Or maybe it is caused by tampering with the .exe file? Just to make it clear - by tampering, I understand adding HD resolution properties to the .exe shortcut. I know that pirated copies of SC3000U suffered intentional performance hits. Perhaps the same goes for SC4 and the program simply thinks that I try to hack the game...?  I just don't know... I am really disappointed. Could you shed a little light on this?