JMF - webcam issue

[chaster]

Hi everyone,

I experienced a very strange problem detecting my webcam. In JMStudio, I checked 'CaptureDevice' in order to see whether my webcam appears there. Ok, it wasn't there so I tried 'Detect Capture devices'. The system started searching, it displayed some kind of 'Please be patient...' dialog, and then suddenly quit. I tried it once again, same result...
My webcam's drivers are installed, it is plugged in, works fine with YM. I also tried detecting it dynamically, from code like this:

Vector deviceList = CaptureDeviceManager.getDeviceList(new YUVFormat());

...it returned 0 devices detected...

Please help me solve this.
Thanks in advance,
Chaster