I booted to 15 and did the updates. After the updates I ran Synaptec and it came up. I checked the repositories and as I was looking at them, Synaptec shut down. I tried rerunning Synaptec and got the Password prompt. After I enter my password, Synaptec flashes on the screen and shuts down. Also since this happened, the software manager will not run. I did not make any changes in the repos. Am I the only one with this problem?
Simple fix you can try and no, you are not the only one.viewtopic.php?p=743703#p743703
certain gtk-3 updates are playing havoc with certain gui themes. If fix does not work. It is simple enough to go back to your original theme if you so wish.
Linux user 475019.