Some of you might have encountered some problems when clicking on a thumbnail a couple of days ago . The allegedly needed picture viewer that it asked you to download contained/contains a trojan. I hope all of your trusty anti-virus softwares catched this little bugger and you did not go further with the installation. If not, please delete the picture viewer and run an extensive anti-virus check!
The picture hoster already dealt with all of the necessary steps and everything is now back to normal. :)
I apologize for the inconvenience.