Thaaaaaaaat's nonsense. I had relatively high-res CRTs (1600x1200) in the late 90s and early 2000s.
My father and I were able to get by with Netscape Navigator and Firefox for quite awhile as well.
https://groups.google.com/forum/#!msg/uk.comp.os.linux/5c40N...
> "Sorry, the Argos Internet site cannot currently be viewed using Netscape 6 or other browsers with the same rendering engine.
> In the meantime, please use a different web browser or call 0870 600 2020 to order items from the Argos catalogue."
> Sorry, I think I'll shop elsewhere until you get it fixed...
Argos was sniffing the useragent. I think people tried changing the useragent, and it worked fine.
This kind of thing wasn't rare, even in 2003.
And it is not rare now either. Nothing has changed in that regard. Things have just gotten massively slower, use insane amounts of CPU, and are less functional.