The hori brand is probably the best but pelican write and protect pack has really good ones that dont get scrached, and there much cheaper.
No, in fact, the clear screen protectors help to prevent damage to the Nintendo DS screen.
try taking off any screen protectors
Most screen protectors are a very thin plastic sheet that covers the entire screen. They are available for most all electronic devices such as the Nintendo DS, blackberry, iPhone, ereaders, etc.
They stick to your touch screen but still allow the "touch" part through. Therefore they protect the screen from being scratched by annoying pens (the stylus you're supposed to use).
dual screen
It means dual screen. Since the DS has 2 screens it is called ds or else if it had one screen it might have been called ss or s or something.
I believe the the ninteno dsi is better because of the camera they added to it, and with free and easy Internet access to sites like myspace, facebook, etc.
keep charging i had ds bottom screen turn black
You go to the Nintendo DS settings and you pick the screen icon.
The DS in Nintendo DS means Dual Screen because the Nintendo DS has two screens. Or, it could mean Dream Scape, but Dual Screen is more likely :)
When you turn on the DS, the main screen is the menu.
Nintendo - Dual Screen