I tried to find some threads about it but failed miserably hehe. I'll look again, though.

I'm running version 2.52.516 build 165 on Windows Vista Ultimate 64. The latest failed download is "Artifice WB".
It's not a huge deal, really, since it works from the websites - but...you know. =P
Edit: Found a couple of other threads but there was no real solution in either of them. It does appear, however, that it's a server-side problem. Not client-side. I'll just whip off an email to support and alert them to the fact that the problem is still there.
Thanks for your help guys. I appreciate it.