I was actually looking for your thread yesterday, but couldn't find it. The notification link loaded an error. Perhaps it was removed by mistake?
No, contact Roku support.. the item return section is not what you want to select, because there's only a 30 day return policy and you said you've owned the stick for two months. You're now in the warranty claims time period.
I suggest you contact Roku support directly and open a ticket with them. Go through the troubleshooting steps they ask you to try, and once it's determined that those steps are ineffective, they will create an RMA for your Roku, and you will send back the old one in order to receive a replacement.