[问题]how to change cams in Camorama?

[好墨墨]

My cam is Mustek Wcam300A. I installed the driver by EasyCam2. It works now, but only with gnomemeeting, because gnomemeeting has such setting of changing cams and I can set my cam over another option of "Unknown/Generic". Unluckily, Camorama or gqcam or whatever doesnt have such setting and whenever I start these apps, the default cam is always that "Unknown/Generic", which surely doesnt work! Does somebody know how to do some configurations in camorama or somewhere in Ubuntu to set my cam as the default cam whenever the apps get started?

Thanks in advance!