Troubleshooting - A4Tech ViewCam PK-835 User Manual

6. Click the "help" icon
you will know more function introduction about this VP-EYE
Funtions.

Troubleshooting

Question 1: There is no the selecting item for the pixel of
800x600, 1024x768, 1280x960 in the image window
Solving Method: please install the DirectX9.0 or above version
in above window (as show Image 1),
16
(Image 1)