So i'm sure everyone knows this error by now Code: Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. Press any key to continue . . . So for the last two weeks, i've been using my desktop with 6GB of RAM and through the run.bat script made it as high as 1568MB that I could dedicate. Well I just got my 2nd set of RAM so now i've got 12GB (6x2) and I still can't go higher. Am I missing something? I don't know much about the java code line Code: @ECHO OFF SET BINDIR=%~dp0 "%ProgramFiles(x86)%\Java\jre6\bin\java.exe" -Xincgc -Xmx1586M -jar "%BINDIR%\craftbukkit-0.0.1-snapshot.jar" PAUSE but I've seen people with 8G in there so I know it's possible. Also going the Code: @echo off SET BINDIR=%~dp0 "%ProgramFiles(x86)%\Java\jre6\bin\java.exe" -Xmx1586m -Xms1586m -jar craftbukkit-0.0.1-SNAPSHOT.jar pause route doesn't do anything better for me either. I know a little about java but the difference between "xmx/xms" and "xincgc/xmx" escapes me. halp plox.