I have a using a triple boot system. Windows 7 pro, xp, and ubuntu. The system boots to the ubuntu boot menu. I can't go any further because Ubuntu dosen't recognize my wireless keyboard and mouse. How do I fix that?

I have a triple boot system, windows 7 , win xp, Ubuntu 11.10. I have a microsoft wireless keyboard and mouse, 4000. I've tried another wireless keyboard and mouse also. I can't get beyond the Ubuntu boot menu because it dosen't recognize my keyboard and mouse. Any idea's??