Hi, 
I want to view my system (GV 800) on my iphone. Therefore I decided to install the new version of geovision software – 8.34 
I had installed a new fresh copy of win xp with the 8.34 drivers and software. 
I should note that with the 7.5 version it worked perfect. But after the upgrade I see black picture on each camera for few seconds and then the "no signal" note of geovision. 
I've been tried to install a different drivers, even the 7.5 drivers – and still no picture. 
Tried to change the PAL to NSTC – and still no picture. 
Even when I plug out the camera and reconnect it – it shows a black picture for few seconds and return to the "no signal" picture. 
All cameras bring strong signal. I tried even to connect a camera on place directly to the card and it won't help. 
Did anyone have a solution? Did anyone know this problem? 
  
Thanks, 
Almog.