My friend bought a wireless keyboard/mouse combo by logitech. It worked fine for a maybey two days topps. Keys dont type letters or numbers printed on them. examp. When "I" key is pressed it comes up something like 8= Maybe some sort of filter got turned on or something?
does that happen in just a word document? or other documents? does it happen all the time no matter where you type?
uninstall and reinstall the latest drivers FROM the logitech site. Should be drivers named "set point" The ones that came in the box are likley not the latest. And check battery levels.