195If Something Goes WrongResolving a hardware conflictfor example, by installing a new graphics or audio card mayimpact performance. Some software changes may alsoimpact playback performance (for example, downloadingnew drivers from the Web).Before installing a new hardware or software component onyour system, check for any potential conflicts between itsresource requirements and your current system configuration.Also, if you change your operating system, check with yourPC manufacturer or your graphics card vendor to ensure thatyou have the appropriate drivers for both your hardware (forexample, the graphics card) and software (drivers mustsupport the operating system and DVD with WinDVD).Slow playback performance.DVD playback is a resource intensive application. Otherapplications and/or changes to your system hardware,software or configuration can impact playback performance.If playback is slower than normal, try:1 Closing any other open applications to improve theperformance of the DVD playback.2 Ensuring DMA is turned on. (See “Playback performanceis poor.” on page 194.)3 If you have installed new hardware (such as a newgraphics card or audio card), ensure the component’sdrivers support Microsoft ® DirectX® 5.2b or higher andWinDVD. Contact the manufacturer of the component.4 Verifying that your display driver resolution, color depthand refresh rate are optimal for DVD playback. (Somesystems do not support video overlays if these parametersare not optimal.) Try lowering these settings to improveperformance.
