Hello there !
you have a conflict with the installed software. There is a service named VampService you can kill in taskmanager (on windows) and so free access to the amplifier by openViBE.
I already investigate this problem in the devlopment of the VAmp driver, and asked BrainProducts about the problem :
The readme given along with the SDK said to desinstall the recorder software, and it's a good advice. The recorder is using its own dll, and is executing an utility called "VampService.exe" that takes exclusive control over the VAmp (even when the recorder is closed). So when the Recorder is installed, my driver can't access the device. By the way, It would be nice to have an "uninstaller" with the recorder
I didn't have any answer... I will ask them again and post their reply asap.
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