Vista - Vista not detecting webcam

Hi, i have the following specs:

AMD Athlon64 X2 5000+
5 GB DDR2 800 MHz RAM
Nvidia 9600 GT 512 MB
2x160 SATA II Seagate + 1x250 GB SATAII Seagate
Giga-Byte GA-M57SLI-S4 MB
Microsoft LifeCam VX-500

Windows Vista Ultimate x64 SP1 with all the latest updates.

Problem is i have all drivers working perfectly but it seems any program(Yahoo messenger / Windows Live Messneger etc) on my system does not dectect any webcams i install on it , tryed a Logitech QuickCam Fusion it installs without no errors but no program detects any of the webcams ... bouth webcams work perfect under win XP thow.
Here is a pic
http://img58.imageshack.us/img58/259/webcamak0.jpg

Hi, Miho, and welcome to the forums.

Sorry to hear that you are having troubles - have you researched to see if others are having the same problem as you? If not, it may have something to do with your security software blocking access to USB devices....

found something about Vista and more than 4 GB of ram USB bug but for SP1 it tells me the hotfix is not for my system as for security software i have none atm so no problem about this.

Miho, you say the drivers are working, how do you know this?
If it is not working across the internet then try turning off your firewall.
Have you looked at it under device manager?
Did you install it using the administrator account?

see for yourself in the picture posted , there is no conflict at all with anything the divice apears to be working ok, but they are not detected by anyprogram in system and yes i have administrator rights.

have a look at services, a long shot but you never know.

nothing wrong in services from what i see ... could it be that when i installed a version of DX9 to be able to play DX9 games under vista(you know you get some dll`s missing in vista on certain games) that i`ve ****ed up something in my windows ?

Have you got any software working with the webcam?
I ask this to try and cut down on diag.
Have you tried to capture and image through imaging.