If you are experiencing trouble try the following before calling
technical support:

1.  Turn off smartdrive.  (Essential if you have 8MB w/2MB smartdrive cache)
        In \AUTOEXEC.BAT
        REM C:\DOS\SMARTDRV.EXE
2.  Turn off 32bit disk access/drive access. (..)
        From the 386enh Control Panel under Virtual Memory
3.  Empty your Startup group.
4.  In the \WINDOWS\WIN.INI file, add semi-colons to the run= and load=
        ;load=c:\demo1\example1.exe;...
        ;run=c:\demo2\example2.exe;...
5.  Turn off program manager enhancement products such as
        PC Tools For Windows, Norton Desktop For Windows, etc.
        In the \WINDOWS\SYSTEM.INI, make sure you have the line
        shell=progman.exe
        in the [boot] section.
6.  Acquire the newest version of your Windows video driver for your
        graphics card.  TIP: If you are still using the driver
        that came with your card on a disk, you probably do NOT
        have the latest version.  Contact your video card manufacturer
        for the latest version.

7.  Reinstall Quicktime For Windows v2.03.  FILE|RUN
        \SETUP.EXE

Before calling the technical support line, be prepared to provide
the following information:

1.  Information from:
        \WINDOWS\WIN.INI
        \WINDOWS\SYSTEM.INI
        \WINDOWS\QTW.INI
        \CONFIG.SYS
        \AUTOEXEC.BAT
2.  Make and model numbers for your:
        Video card
        CD-ROM drive
        Sound card
3.  Any error messages and exactly what steps are required to reproduce
        the error or problem.