I just did a goo
gle search and found a few places mentioning LiteON/Gateway Model: SK 9920 Millenium/Multimedia Keyboard. Perhaps this will help... Search a few links on google I would say.
Do you need to stay with the same manufacturer? I would say that most keyboards nowdays have very little trouble as long as you stay away from small no-name brands from overseas. I've used logitech's for years and had the same luck.