Windows 2000 and Windows XP have thrown on lots of transition effects in its menus and windows. If you have a really good video card, no problem. In fact its really neat. But for a long time, my home PC sucked! If you want to get maximum performance without the flash, or if you want to control :

For Windows XP :

• Click Start
• Control Panel
• Display
• Click the Appearance tab
• Click the Effect button

For Windows 2000 :

• Click Start
• Settings
• Control Panel
• Display
• Click the Effects tab

then experiment by checking and unchecking various effects. Uncheck all for the best video performance.