Yellow Triangle or Question Mark.
yellow triangle or yellow exclamation mark
It is a "!" is a yellow triangle
Check that device manager recognizes the device with no errors or warnings.
Devices that don't appear in device manager--- such as a scanner, printer, or some USB or FireWire devices--- Page 814 in the A+ CompTIA 2009 7th edition (2. Check that Device Manager reconizes the device with no errors or warnings.)
Device Manager
Device Manager
You need to look in the device manager. Click start -> control panal -> system -> hardware -> device manager From there you can see which drivers there are errors on and you can reload or remove driver.
System Events only tracks errors and warnings in Vista.
First try moving the device to another USB port!!! Check that the usb device is functional in the Device Manager. some USB devices don't appear in Device Manager use the utility program that came bundled with the device to check for errors.
Check that the usb device is functional in the Device Manager, Some USB devices don't appear in Device Manager use the utility program that came bundled with the device to check for errors. No. Plug the device into another USB port. If it does not work after you have plugged it into all USB ports on the computer then you know that your device is not working.
Errors Warnings
Answer the following question: Are you using the correct type of digital pen? Try rebooting the notebook. Check Device Manager for errors. Try updating device drivers and flashing BIOS.