Feedback: Poor UX on 7.5.1 install

[chrisjj]

On Windows 7 with TP 6.5 (txpeng650.zip) installed, I ran txpeng751-64.zip to install TP 7.5.

1) This apparently removed my TP6.5 without warning. Certainly it broke my shortcuts to TP6.5 .exe
2) This failed to create an entry under All Programs

I then ran the (undocumented) Portable Wizard. This was inoperable, Next being disabled http://i.imgur.com/camQWRW.png . Workaround: run TP7.5, then retry.

I then launched a .wks file, and the operation was interrupted by http://i.imgur.com/oRuLk3Y.png . Workaround for next time '[x] Always use the selected program to open this kind of file'

This produced two errors reporting .syn file load failures.