I'm trying out Parallels on a new MacBook running Leopard. I have 2.2 GHz and 1 GB RAM, but when running Parallels everything including the guest OS (Windows XP) but especially Mac OS X runs way too slowly to be acceptable. I switched the "optimize for better performance" option to Mac OS X Applications and that helped a little but Mac is still frustratingly slow. I have the most recent version of everything. What else can be done? Can I reduce the 512 MB of main memory that is allocated to the VM? By how much? I really only need to be able to run QuickBooks. Thanks!
You need more RAM. With only 1 Gb available for both OSs you're seriously underpowered. Vista alone really needs 1Gb as a minimum, the same for OS X. We're running a MacBook the same as yours with Vista and Leopard but added another 2 Gb of RAM to total 3Gb. They both fly as a result. The other alternative would be to use BootCamp and run one OS at a time.
Figured it out Yeah, I figured that out and I upgraded to 4 GB RAM and everything runs faster. Mac OS is even faster than before without Parallels. Thanks!
