I use live-build from Squeeze. When I build a Squeeze image with standard-x11 (and further packages that use standard-x11) I get an error message concerning xresprobe ("xresprobe has no installation candidate"). The reason is that xresprobe was removed from Squeeze. Would you please so kind and update live-build in Squeeze?
Perhaps it is helpful for you to know that there was a bug report in January: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=608566
Thank you in advance.