NVIDIA 7900GS graphics card cloning dvd only displays on projector screen

[beolight]

NVIDIA GeForce Go 7900GS graphics card on DELL XPS M1710

just tried setting up laptop for a works presentation which is dvd based,went into nvidia control panel and set up cloning, press play on dvd and dvd plays on projector screen but on laptop only black box i.e no picture. the display is cloned just no picture

any ideas??

specs below


Intel®Core™ 2 Duo Processor T7200 (2.0 GHz, 4 MB L2 cache, 667 MHz FSB)
Genuine Windows® XP Home Edition
17" UltraSharp™ Wide Screen WUXGA (1920x1200) TFT Display with TrueLife™
2048MB 933MHz Dual Channel DDR2 SDRAM (2x1024)
80GB Hard Drive
Fixed Internal 8X DVD /-RW Drive including software
NVIDIA GeForce Go 7900GS graphics card
9 Cell, 80Whr Lithium Ion Primary Battery

[beolight]

sorry guys wrong section can a modmove it please

[beolight]

http://nvidia.custhelp.com/cgi-bin/nvidia.cfg/php/enduser/std_adp.php?p_faqid=28&p_created=1096498048&p_sid=SIYYNYti&p_accessibility=0&p_redirect=&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX 3Jvd19jbnQ9NiZwX3Byb2RzPTAmcF9jYXRzPTAmcF9wdj0mcF9 jdj0mcF9zZWFyY2hfdHlwZT1hbnN3ZXJzLnNlYXJjaF9ubCZwX 3BhZ2U9MSZwX3NlYXJjaF90ZXh0PW92ZXJsYXk*&p_li=&p_topview=1

looks like a solution, i tried it but the drop down menus were different and no option to enable full video screen

anybody?

[rmanet]

it's not your video card - laptop display drives the LCD, projector or both, try:

1. Press <Fn><F8> to switch the video image between the display only, the external device only, or the display and the external device simultaneously.

2. d/l Dell Quickset if not on your laptop, maybe a utility there?

hope this helps - be sure to be patient with the Fn (it's blue letters) - may take a few tries