Connecting xcarve

My XCarve is not being confirmed on my MacBook I am using google chrome and snow leopard
Thanks for any help, regards

Issue is with Snow Leopard.

I too am using an older MacBook to drive the X-Carve and after upgrading to Yosemite it works fine. The upgrade is free on the App Store and I haven’t noticed much slowdown. Your mileage may vary, but I’ve liked it so far and it does the thing I need it to, which is drive the X-Carve.