Bug#492899: partman-crypto: cancel button unusable on "Erasing data" screen

[dann frazier <dannf@hp.com>]

Package: partman-crypto
Version: 33
Severity: normal

When doing an LVM+crypto install, I am presented with a "Erasing data"
screen with a Cancel button. It doesn't seem to be possible to use the cancel
button - it is not highlighted, and pressing tab doesn't cause it to be.

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: ia64

Kernel: Linux 2.6.25-2-mckinley (SMP w/1 CPU core)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash