Grey linen screen of death???

[abevilac]

My mini is connected to my TV and receiver and I was listening to some music this afternoon from iTunes with the visualizer turned on. I stop the music to talk to somebody and when I went back to turn on the music again I am hit with the gray screen that linen screen and there's no menu bar or any icon of any sort on screen. I quit iTunes from the keyboard but I still can't get back to my finder. I can just shut down the mini and start over again but it seems really weird. Does anybody have any suggestions?