Originally Posted by nomikos
The attached image shows what I mean. This not occur with java based programs.
My video card is nvidia and have worked very well in the past.
Now I dont remind what I did that could cause this issue...
The program in the image is filezilla, but malfunction occur with firefox too.
I use kde (linuxmint)
I do not know for certain what is wrong, but there are two possibilities I am thinking of:
First, have you changed any settings in KDE recently? Sometimes menus, windows, and so forth are affected by configuration settings in your desktop environment.
Second: I believe that FileZilla and Firefox are both dependent on the GTK widget libraries. Which versions of gtk+ and glib are installed on your system? Perhaps upgrading software may help.
If there is anything else you have changed or reconfigured on your system recently, you should describe it. Also, are there any other applications on your system that are behaving this way? Also, can you install another desktop environment (for example, Gnome or Xfce4) and see if the problems occur while using it? These are ideas that might help narrow down the problem.