Apple PC Compatibility Card - Manual (Page 228)

Other problems
I’m running applications in both environments and they seem sluggish.
Significant drive access in one environment (including file sharing) can cause
a slowdown in the other.
The PC environment is frozen, and pressing Control-Alt-
…
doesn’t reset the system.
Try restarting by pressing x-Control-Alt-period (the decimal point on the
numeric keypad) or x-Control-Alt-…. If you can, switch to the Mac OS and
click Restart PC in the PC Setup control panel. If these options don’t work,
restart the Macintosh using the Reset key or keyboard command.
I can’t configure my pointing device.
You don’t need to configure some pointing devices.
If you have a two-button ADB pointing device, you may be able to use its
software to map the = (equal) key on the numeric keypad to the right button.
This lets the device behave like a standard PC device.
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