I now have a premium account, so it's not a circle jerk.
Others can download my test file so it's something at my end of things.
Are there any other UK users here (our ISPs run their traffic through something called Cleanfeed run by the IWF to block extreme porn, which sometimes blocks an entire range of IP addresses) who CAN download?
I've now tried Firefox, Safari and Chrome on my Mac, tried through my Blackberry Playbook, so it doesn't look as though it's machine related at my end?
Here's a new test file -
http://www.sharpfile.com/njkwd8z3txyq/CN23.pdf.html