World Community Grid - View Thread - BOINC Newbie prob...

Don't know how either (last time using an Apple was a Lisa in about 1980). Visited the Apple support and found the below post. It maintains it's 'on' by default and can be switched off by holding the Command Key when booting.

http://docs.info.apple.com/article.html?artnum=106916

and here help how to do it via the menu (http://clusty.com is my search engine)

http://www.intime.uni.edu/support/SystemRequirements/virtualmemory.htm

What is virtual memory?

"Virtual memory" is space on your Macintosh's hard drive that it is used as RAM. Like built-in RAM, having more virtual memory allows your Mac to open more and larger programs and files, but it is not as fast as built-in RAM. "Total memory" is the amount of built-in memory your Macintosh has plus the amount of virtual memory selected in the Memory control panel.

How to increase virtual memory?

1. Click on the Apple Menu in the upper left corner of your Macintosh's screen.
2. Go to the Control Panels folder.
3. Select the Memory control panel.
4. In the section labeled Virtual memory, on the right side, increase the number in the white box to 128M and close the Memory control panel. If it is already at 128M or higher, close the Memory control panel without making any changes.
5. To have your changes to your Macintosh's memory settings take effect, go to the Special menu and select Restart.