I run with the following shortcut path: C:\WINDOWS\system32\cmd.exe /c START "high priority sc4" /high "C:\Program Files\Maxis\SimCity 4 Deluxe\Apps\SimCity 4.exe" -Introff -CustomResolution:enabled -r1440x900x32 -f So that's 1440x900 With no intro and it starts in high priority. My .exe is also modified so SC4 only uses the first CPU core, which seems to have mostly fixed the random CTD's, yay!