I have a bilingual Ubuntu setup on my netbook. Whenever the screen locks (due to screensaver or suspend), I find I am unable to log back in. In 9.10 I had to kill GNOME using Ctrl-Alt-Backspace, but in 10.04 I've at least found a workaround: I click the "Switch user" button, and then log back in to my active session.
This only happens on my netbook!
I've checked, and it's not the language setting -- I am definitely trying to type my password in English. Has anyone encountered this?