I also use eHUB ... I get the whitescreen after the eHUB loading screen.
I have the newest version of silverlight installed, and everything else is up to date. It is does not appear to be a "user agent" issue, as I have tried every setting in Safari's Developer menu...
I found a solution that worked for some, and that was to copy arial.tts to the library/fonts/ folder in the root of my startup drive. This did NOT solve the issue for me, but did for others online.
Is it possible that my employer used a different font? If they used a different font, would this cause a white screen as well?