The Report Definition Screen all of the Reports cannot be adjusted for height in (at least) the UK version of V8. I use a Samsung Netbook running XP with my backup copy of TMG for field trips. It has a maximum practical depth of 600 pixels, which means that the 'Options', Create Report', etc. buttons are not visible the Descendant Indented Chart. I have 3 bars above the working area, the application bar, the 'file, edit, etc ' bar and a single line TMG toolbar with small icons. This means that the Descendant Indented Chart, arguable the most useful of the reports, is nigh on impossible to use. It can be done by increasing the screen pixel numbers, but of use only in dire emergencies.
For most of the Reports, this problem is irrelevant as the vertical height does not exceed the page size. However, there are two or 3 other reports with deep Report Definition Screens, which are in the same state as the Descendant Indented Chart
An early answer as to why the software restricts vertical manipulation it will happily allow the width to be changed, would be welcomed.