testing of download from divecomputer needed

[Henrik Brautaset Aronsen]

Dirk Hohndel wrote:
> Either way, this REALLY needs some testing. And please report back both
> success and failure. Tell us what you tried, what worked and what didn't.
> I want to make sure I got the work flow right, that the options make sense
> and are reasonably intuitive for a diver.

I selected cancel on my Petrel after about 20 dives had been downloaded, 
and it seems the download dialog ended up in an unstable state:

- the (un)select all button (un)selects all dives except the last one

- the OK button doesn't work

Henrik