All right, first of all apologies for my bad english, im from argentina . Well, my main problem is that i have installed a new ram to avoid lag in my server. I have got 2 mushkin 2x2 1333 mhz and one kingston of 4gb. ( Just saying, theres is no problem with rams, works perfectly) All right, the server is all done, and it is all fine . But my problem is with my start.bat I Have got 64bit windows os so my bat should say something like this. @echo off "%ProgramFiles(x86)%\Java\jre6\bin\java.exe" -Xms1536M -Xmx1536M -jar craftbukkit.jar pause OK.. MY problem is that although i have got 8gb of ram , when i put a value higher tan 1536 says me the follow error: "ERROR OCCURRED DURING INITILIZATION OF VM COULD NOT RESERVE ENOUGH SPACE FOR OBJECT HEAP COULD NOT CREATE THE JAVA VIRTUAL MACHINE. PRES A KEY..." So, please give me the solution to put more ram i am wiling to put 4gb but when put higher that 1536 appear that error. HELP PLEASE! My e-mail is [email protected] Thanks.