You forgot to mention number four, where all letters you type come out as Capital letters.

You have most likely hit a button that says: "Caps Lock". You need to press this key again in order to type normally. If on N900, shift key solves this. A reboot will also help on any platform.

And I know, I know, no problem mate And if you can be more specific, I'm sure many people here will be glad to help you out with numbers one to three. Tried a reflash? Followed all instructions?

regards.