My wife and I have been using the Microsoft Windows desktop versions of CLZ's database programs for managing book, comic, and movie collections for many years. We've found the Collectorz database programs to be well-designed and very useful, but we've encountered some issues getting the programs to work correctly on her Ubuntu Linux system, though I would note that the software was developed for Microsoft Windows operating systems and the company doesn't indicate they are supported under Linux. One problem we encountered is that after installing the programs under Wine, when she opened one of the programs, e.g., Movie Collector, and then minimized it or switched to another application with Alt-Tab, she was unable to switch back to the Collectorz program. Alt-Tab would not work nor would the Super key plus Tab key combination. There would be a small window at the upper, left-hand corner of the screen indicating the program was running, but clicking on it would not allow her to enlarge the window to work in the application again and there didn't appear to be any way to enlarge or maximize the window.

I was able to resolve the problem with minimizing the application or switching from it without re-creating a problem opening files by checking the Emulate a virtual desktop option under the Graphics tab for winecfg instead.

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I had installed MakeMKV from source files on an Ubuntu Linux system . It had been working then, but when I tried to run the program today, I saw the message "Application failed to initialize NO_ANSWER_FROM_MAKEMKVCON".

I had updated the operating system and other applications on the system in the intervening months, so I knew it was possible that the upgrade changed or removed libraries that makemkvcon depends on. I had upgraded the operating system from Ubuntu 25.10 (Questing Quokka) to 26.04 LTS (Resolute Racoon). The error means the MakeMKV graphical user interface (GUI) can't communicate with its backend console process, makemkvcon. I.e., the GUI is waiting for a response from makemkvcon and that process isn't starting or is crashing, possibly because of a missing required dependency such as a missing or changed library file. To try to determine if that was the case and, if so, which library might be associated with the problem, I ran makemkvcon from a terminal window.

alice@Wonderland:~$ which makemkvcon
/usr/bin/makemkvcon
alice@Wonderland:~$ makemkvcon
makemkvcon: error while loading shared libraries: libavcodec.so.61: cannot open shared object file: No such file or directory
alice@Wonderland:~$

I was able to resolve the problem by reinstalling MakeMKV from the source files. When I did that and re-registered the application, it started normally.

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My wife was dissatisfied with the default file manager, GNOME Files, aka Nautilus, on her Ubuntu Linux desktop system. You can determine the default file manager from a terminal window by issuing the command xdg-mime query default inode/directory, which will show you what application opers directories.

$ xdg-mime query default inode/directory
org.gnome.Nautilus.desktop
$

You can also check on whether one of several common file managers, such as Nautilus, Thunar, Dolphin, or Nemo, which is a fork of Nautilus, is currently running with ps aux | grep -E 'nautilus|thunar|dolphin|nemo'. I saw that I had previously installed the Krusader file manager when I checked for file manager desktop entries with grep -l "inode/directory" /usr/share/applications/*.desktop.

$ grep -l "inode/directory" /usr/share/applications/*.desktop
/usr/share/applications/org.gnome.baobab.desktop
/usr/share/applications/org.gnome.Nautilus.desktop
/usr/share/applications/org.kde.krusader.desktop
$

But I didn't think the Krusader interface would appeal to her as she wanted a file manager that provided an interface more similar to the one for the Windows Fle Explorer that she had on her Windows 11 system, so I issued the command sudo apt update and then sudo apt install thunar, which installed thunar 4.20.7 — after installation, you can check the version of Thunar with thunar --version. I then made Thunar the default file manager with xdg-mime default thunar.desktop inode/directory. If you run the command xdg-mime query default inode/directory, you should see thunar listed when it has been made the default handler for directories.

$ xdg-mime default thunar.desktop inode/directory
$ xdg-mime query default inode/directory
thunar.desktop
$

I then unpinned the GNOME Files (Nautilus) app by right-clicking on the icon for it and selecting Unpin. I then pressed the Super key along with the "A" key, and typed thunar in the "Type to search" filed and then right-clicked on thunar when I saw it returned and selected "Pin to Dock" so she could open it the way she was opening GNOME Files.

To make the left pane of the Thunar window act like Explorer on Microsoft Windows operating systems, I configured it to expand a directory to show subdirectories if she clicked on it. To do so, I changed Thunar's sidebar style from the default "Shortcuts" to "Tree, which can be done by selecting View, then Side Pane and then selecting Tree, which changes the left pane to provide an expandable directory tree. As with the Windows File Explorer, you can toggle the display of hidden files. I turned that option on by pressing the Ctrl and H keys simultaneously — the option can be toggled off again by using the same key combination.

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