Your comments

This is not a bug, just a missing feature.
The "Minimize to tray" option just removes Ubooquity from the taskbar when it is minimized, it does not automatically minimize the window at startup.

But it's not a difficult feature to add, I'll do it.
Hi,
could you tell me which browser you use, on which platform ? (Windows, Linux, Mac OS...)
Better yet, if you could take a screenshot of the problem.

My guess is that this is the placeholder the browser displays when it has not received the image yet. Does it stay or is the image displayed only when waiting for the comic page to be loaded ?
Hi,
Ubooquity already preloads one page in advance. I could load a few more to be safe.
But the preloading mechanism does not work well on iOS, that's something I have to investigate.
Yes, I'll add an option for that.
Ok, I understand. You are talking about a real-time user activity monitoring, with quota management.
Although technically possible, it is beyond the scope of this project (a simple content sharing server), so it won"t be implemented.
I stand corrected. :)
Thanks for the information and the tests you have done !

I am a little bit reluctant to add almost 5 MB of additional jars in the Ubooquity binary for what I think to be quite specific cases, but I'll add an entry in the FAQ so that other people can easily solve this problem if they encounter it.

You can see these information in the log file.
Look for lines like:
20140726 18:10:46 [pool-2-thread-6] INFO  com.ubooquity.a - User successfuly logged in. [login:Tom][ip:10.0.0.5]

to know when a user logs on, and

20140812 19:57:34 [pool-2-thread-5] INFO  com.ubooquity.f.d - Served file to Tom in 21 sec: Deadpool 014 

to know when a user downloads a file.