I have a Roku Express that is a little over a year old. It has worked without problems until now. The menu list will not stop scrolling. I saw something online about going into settings to complete a "system restart"...but it will not allow you to make any selection to access settings or anything else.
Have replaced batteries and powered off/on to reboot but nothing changed.
Check for other remotes in the room, under a book, in cushion, sounds like IR interference. Try standing in front of the roku to see if it blocking the incoming IR from the source.
Thanks for the post.
If after trying the steps provided by @Tivoburkee are not working, please send me a PM with your Roku account email address, and include the serial number on the Roku device along with a summary of the issue you are experiencing. I'll be able to assist you further from there.
Thanks,
Danny