Help Sub lab black screen

down loaded it then opened in preferances all that shows up under vst3, i drag it in click on tool and it opens a space to enter the activation code and then a second later goes black so I cant put the code in ???

Have you had a look at this support document

Its a known issue with some graphic cards and SubLab, you can deactivate openGL and it should work ok.

Thanks,
Gavin.