Edit: Paste not working on my mac

there is absolutely nothing wrong with the keyboard. its clearly a software issue, as if neither the keyboard or mouse can get something to paste, and paste isn’t even highlighted. and there is still the dragging issue. and incase you still think it is, when I brought it to a friends house so he can take a look I was using his keyboard and mouse.

and i’ve obviously restarted it several times.

I’m currently trying to just completely reformat. I’m upgrading to Leopard in the process.