I'll try rerunning the ntp-client to see if it fixes it then, and I'll get back to you if it does.
I've had an issue with time being slightly offset in the past, but from what I remember that did not blank out the display, but gave a warning about it. That is of course dependent on if I remember correctly.
UPDATE:
Yeah, seems that resyncing my ntp time did the trick. Sorry about that. It would be nice however if it showed an error instead of completely blanking out.
Now I can move back to the virtual machine I normally use for bitshares. I'm not all that comfortable having bitshares in my day-to-day use browser, or desktop for that matter. Any suggestions how to safely remove the bitshares wallet from firefox, without destroying my profile? I've become rather sentimentally attached to it and it's impressive history.