After you watch a Shockwave movie, the system bit depth has changed or your applications display in black and white.
Some applications do not support some of the bit depth changes that are possible via Shockwave. For example, Microsoft Office applications do not support a bith depth of 2 DPI. When this bit depth change occurs with an application that does not support the changed value, the application will not return to the default system bit depth.
When you reboot your system, applications that were effected will return to the default system bit depth.