RadioReference.com Forums

Hoping someone can help me out here.. I've been using build 467 for a little while now, and today downloaded the latest nightly which is 530. However when I run 530 I no longer have an option for RTL-SDR / RTL2832U for a front end. I've tried extracting the nightly into a new folder and extracting/over writing my working previous version with no luck. What am I missing here? Something simple I'm sure....

Thanks!