Yes, you can use a computer monitor, IF it has a HDMI and has HDCP support. If you just want to activate a Roku, the HDCP may not be needed. Most commercial channels probably require HDCP, (High Definition Copy Protection).

I use an 8 year old 24" ViewSonic 1080p monitor with one of my Rokus.

After using the new Netflix inteface for more than 9 weeks, I can still say it's just as annoying as when the new interface was initially released. The auto-play of the previews is just as distracting and I end up not being able to read the descriptions easily. This has prompted me to deal with some...

... I guess for the future, I should start learning about NAS devices and running media servers on them because eventually I want to rip all my movie discs and have them ready to stream. 1st world problems for sure. ... I ended up with a dedicated home server. Meaning it's not my router or my wirel...

... The standard Roku look-and-feel Netflix UI remains on Roku 2 XS and XD which doesn't have these auto-start, auto-next-episode/post-play and previews features which some people here don't like in the newer common Netflix UI . ... Thank you for reminding me. I have 2 older Rokus, a HD XR, (which ...

Wow, that's annoying. I guess I am glad I have no screen saver setup.
But, kudos to Roku. There are easy fixes, (PIN), and work around, (clock
screen saver or none).

Yes, I am one of those people who think I should get better display from Netflix. That said, I am quite happy with something between full SD, (Standard Def), and 720p. Meaning a low bandwidth SD stream is just too fuzzy to watch. If I remember correctly, their used to be 4 SD streams, 2 of 720p, and...

Yet another bug. I'll report it tomorrow. When freezing a video on Amazon, switching inputs to something else, then back to the Roku, I get HDCP errors. Never got them before. Can't even get rid of the problem without exiting the video, and in some cases, the Amazon channel. Does not happen all the ...

I may have 1Gbps Google fiber, but the connection from Google to Netflix is listed as about 36Mbps. No need to eat that up, because I already have enough drops below SD, down to fuzzy SD, (noticably below DVD quality, and hard on the eyes). I should get Full HD all the time for videos that have it....

Plus, products that have 5GHz WiFi support, tend to advertise it, since it's a selling point.

It almost sounds like your Roku was used in a Beta test. Roku development can select specific users, (or specific Rokus), to have certain firmware loaded. I don't know much about it, since I've never signed up for Beta testing for my Rokus. Contact them again, and be specific. It's likely you won't...

Do you use Netflix?

They started doing auto play of previews, in addition to auto play of videos.
The post auto play next can be disabled through the Netflix web site.

Found another annoyance with the new Amazon channel. Stopping a video, (not pause), then starting to play it later, does not resume close to where it stopped. Litterally 1 to 2 minutes before I stopped. With the clumsy fast forward, (since they removed the normal forward), I can't get to the locatio...

... Netflix offers a lot of great content and as far as auto-play, I wish they would do what Hulu does and just play content continuously without a prompt to see if people are still watching. ... I am glad some people like the new interface. One of the issue that bit Netflix hard on auto-play, is I...

If you read the 802.11n standard, 5GHz is optional;

Wikipedia 802.11n info

Thus, a product that states 802.11n compliance can very well be 2.4GHz only.

It almost sounds like your Roku was used in a Beta test. Roku development can select specific users, (or specific Rokus), to have certain firmware loaded. I don't know much about it, since I've never signed up for Beta testing for my Rokus. Contact them again, and be specific. It's likely you won't ...