Why won't my desktop display show up on the projection screen of my Sony VPL-CX20A?

1. Plugged in data cable to projector & laptop.
2. Turned on projector until blue screen displays on wall with Input-A showing at top left corner.
3. Turned on laptop, screen changed to black then blue in a split second.
4. Screen still blue.
MENUS SCREEN:
5. Signal shows: Cannot adjust this item.
6. Function shows: on, off, on, off, standard, off, off, off
7. Installation shows: Tilt, auto, blue, standard, on, front & rear, on, off
8. Setup shows: On, english, auto, auto
9. Information shows: VPL-CX20A Serial No. 2001193, fH 00..00 kHz, fV 00.00 Hz, lamp timer 682 H

Still no PC display on wall. What am I doing wrong? Someone Help, please?
 
Back
Top