Just recently upgraded to v1.77.1 and a very nice improvement it is too

Anyway, having played with a vanilla install other than Griffs ships OXPs for quite some time, I thought it about time I started exploring some more OXPs so I've added about a dozen various things and they all work great - really expand the game nicely.
However, as of yesterday I can't seem to get the downloads to work from box.com (where most OXPs seem to be stored by their authors). At the moment I'm trying to get Norby's Towbar OXP from here https://app.box.com/s/t7vnj3kfinbpc7m1t ... 03282248/1 - on clicking either of the Download buttons on the page the little notification pops up on the page saying "Your download has started..." but nothing actually is downloaded. This happens with both Firefox and Chromium (on Mint 13 Maya). It worked fine before yesterday and I've not applied any updates in that time.
Just wondering if anyone else is having the same problem with box.com or whether it is something amiss with my setup.
TIA
crypto