If you would like me to properly and effectively register your product, please make it simple and easy for me to do so.
Especially where there is software and versions and models involved, you should have an auto-detect for your own product so I don't need to select one and avoid selecting the wrong one.
The screen shot is from a Logitech registration page. They happen to be the current and handy item to slect for this pet peeve but most other vendors out there do the same thing.
This one in particular get me. The language selection indicates a drop down and there is only one choice (English). Some one was lazy and prepared for the future when they provide other choices I suppose.