Reduce the level of scanning or temporarily disable the virus scanner. Norton SystemWorks 2000 tends to slow or even stop the Algebra program. Adjust the video display. Change the hardware acceleration to None or Basic . Check your Windows Appearance setting in Display Properties .
Fonts set too large tend to cause a system crash.
Try resetting the appearance to the Standard Windows Theme and settings. QuickTime movie or animation fails to run. Restart the computer and reinstall the program. Restart one more time, log-in and try the movie. This is not a fatal error and you can still continue working.