Devices/ VST Instruments, i hear the sound but can't see em!

Hi guys I’m running cubase 5.5 on OSx 10.7.5

I have sequence but want to split the groove agent drums to separate tracks.
, all pretty straight forward,
but when I go to “Devices, Vst instruments” groove agent isn’t there… Or my bass line in halion. In fact the vst instrument boxes are empty.

I have tried rebooting just in case it’s a bug. But still no vst instruments under devices, yet still i hear them.

I’m sure there is another way to do this, help!!!