Your comments

I guess it's assumed that user don't have so many problems that he would have to post a couple of questions :)
UserEcho is a third-party service we use for support, I'm not sure if it can be integrated with collabshot.
Hey, you can't delete an image. It was a long planned feature, but development of collabshot stalled as for now.
Hi Hakim!

It seem to be the problem of collabshot client, so I'm not sure if you can do anything by yourself. The development of it is stalled lately, so I can't tell when it's going to be fixed, but I put it in our bugtracker.
Hi, I'll check out this problem, but I can't give you the dates when it's going to be fixed as collabshot is not in active development right now. 
Hey Vadim! You can contact me on skype: akorzhuev.

Ok, I'll forward it to our desktop developer, not sure about the correct solution right now.

Hi, you can use gnome menu for that like so http://www.ubuntuka.com/autostart-ubuntu-startup/

Hey Boris! Thanks for the bug report, I'll ask our desktop developer to take a look at it