win 2000

[Michael Chandler]

I've been running Jmeter successfully on my XP box. When I try to run it
on a Win 2000 box, I get the error:
 
Error occurred during initialization of VM
Incompatible initial and maximum heap sizes specified.
 
The jmeter.bat file has the entry:
set HEAP=-Xms256m -Xmx256m
 
I tried resetting it but haven't found the correct combination.
 
Any ideas?