Apple Macintosh System 7.5 - Manual (Page 101)

You often encounter problems that require you to restart the computer.
Problem: As you work in an application program, you often encounter
problems that require you to restart the computer.
Cause: You may have an incompatible item in the System Folder. It’s also
possible that your application program is somehow incompatible with
System 7.5.
Solution: To turn off potentially incompatible items in the System Folder,
hold down the Space bar while you restart your computer. When the
Extensions Manager opens, choose System 7.5.3 from the Sets pop-up menu.
Close the Extensions Manager to resume startup. All extensions are turned
off, except those for System 7.5, version 7.5.3.
For compatibility information on application programs, contact the vendor.
You may have a version of the program that doesn’t work with System 7.5.
Problems using QuickDraw GX
This section helps with problems you might encounter using the computer
after you have installed QuickDraw GX.
Your non-Apple printer is no longer available in the Chooser.
Problem: You can’t select your non-Apple printer after installing
QuickDraw GX.
Cause: To print on a non-Apple printer with QuickDraw GX installed, you
need a QuickDraw GX driver for that printer. QuickDraw GX installation
provides drivers for Apple printers only.
Solution: If you are using a non-Apple PostScript printer, try using the Apple
LaserWriter GX driver. To install the LaserWriter GX printer software, see
“Installing QuickDraw GX Utilities” in Chapter 2 (“Installing
QuickDraw GX”).
Contact the manufacturer of the printer to obtain a QuickDraw GX printer
driver for your non-Apple printer.
93 Troubleshooting