keyborad / mouse not usable with 11.10

[tcafmi]

i installed ubuntu 11.10 on my dell studio hybrid today from a USB stick.
after the reboot and starting of X my keyboard and mouse (wireless, or wired) are not detced , usable.

any thoughts on how to fix this?

[gordintoronto]

Keyboard and mouse are both USB devices? They worked OK when you booted from the flash drive?

I'm not sure what you mean by "starting of X." Are you at the logon screen? Grub?