- Cleaned up various bits of text and ensured consistent terminology use. ...

- Reformatted equations.
- Added Fitts reference.
- Added note about questionnaire's general feedback section.
- Added discussion of combo box complexities (one- vs. two-step, etc.), and
  moved combo box figure into same section.
- Expanded discussion of general experiment setup, and moved test environment
  figure into same section.
- Revamped Apparatus section; added notes about parallax effects.
- Swapped order of Design and Procedure sections.
- Expanded discussion of trials and target angles & distances.
- Added note about adjustment of combo box distance.
- Revamped Procedure section; revisited combo box complexities.
- Reorganised paragraphs in Adjusting for learning section.
- Expanded discussion of learning adjustments.
- Adjusted captions of most graphs.
- Added note about "two-click" selection assumption to Error rate section.
- Reorganised Comfort section.
- Added Other findings section.
- Revamped and updated conclusions.
- Spell-checked!

- Revamped the evaluation section. ...

- Added \ISOnine macro to make sure that I say "ISO 0241-9" consistently :)
- Added some more references.
- Removed unnecessary URLs from references.

- Added screenshot graphics. ...

- Changed title slightly.
- Shortened abstract.
- Revamped GUI targets section.
- Added note about check box sizes to Table 1.

- Added learning spreadsheet and linechart script to generate learning ...

graphs.
- Cleaned up appearance of bar charts.
- Centred all figures

- Intitial import of DARC publications.