exxos's Atari, Amiga & retro forum

I don't own an Atari mouse, so I ordered a mouster converter that is supposed to allow any modern mouse to be used as an Atari mouse, but when I move my Logitech laser mouse, the cursor just starts to wiggle in random directions, so it's not useable. I can move the mouse cursor using Alterate, but is there also a way to left-click using the keyboard?

Also, when I insert my QuickJoy Jet Fighter joystick in the joystick port next to the mouse port (#1), I can no longer use the mouse or the Alternate+cursor keys alternative, not even when I disconnect the mouster. Is this normal? This way, I can not use the joystick.

Someone helpful at Discord told me I needed to put a FAT32 pen drive into the mouster, wait a bit, and change a to line in a file that it put on the pen drive, using my PC. That worked, so now my mouse works perfectly. Also, in the meantime, I found insert acts as the left mouse button on the keyboard.

And now I can also use a mouse in port 0 and my old joystick in port 1, so my questions here are solved.