Bug#412066: debian installation bug

["James Utter" <jutter@ecr.unimelb.edu.au>]

Package: installation-reports

Boot method: CD
Image version: http://cdimage.debian.org/cdimage/daily-builds/daily/arch-latest/i386/iso-cd/debian-testing-i386-netinst.iso
Date: 23/02/07

Machine: Irrelevant
Processor: Pentium 2 (i386)
Memory: Irrelevant
Partitions: Irrelevant
Output of lspci -nn and lspci -vnn: Irrelevant

Base System Installation Checklist:
[O] = OK, [E] = Error (please elaborate below), [ ] = didn't try it

Initial boot:           [O]
Detect network card:    [O]
Configure network:      [O]
Detect CD:              [O]
Load installer modules: [O]
Detect hard drives:     [O]
Partition hard drives:  [O]
Install base system:    [O]
Clock/timezone setup:   [O]

User/password setup:    [O]
Install tasks:          [E]
Install boot loader:    [ ]
Overall install:        [ ]

Severity: Minor

Note: Using standard installer (not the graphical installer)

Comments/Problems: At the Task Selection screen, I was prompted to choose software for my system. Needing to go back (to change the selected mirror), I pressed "esc" on my keyboard.  Instead of going back, this started the download of the packages. I was also unable to stop the download.
This is counter-intuitive, and very frustrating. It could be improved by listing the key bindings on the screen (or on a help screen). Also, the ability to cancel the download of packages would be useful.