A response to your question about how the XL is doing:

It is by far the most reliable and most capable printer I have ever used. I got one of the early 5 tool units and while there were things to work out, they have all been worked out.

I am completely satisfied the the printer

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So, you don’t know what a pull request is?

When using the laptop as a second monitor and keeping it at the same height as the external monitor

Check the extruder tension arm. If you have the plastic one it may be cracked.

puddy knife

🤣

someone please correct me if I’m wrong but I believe that for it to be possible, the application that plays the mkv file would have to have a remote execution exploit and the code for the virus would be executed through the player. the player would be required to have elevated privileges. I think this is exceptionally unlikely for vlc

I use PrusaSlicer and their Ender profiles with no tinkering and get consistently great prints.

I caution you to not put too much stock into OPs anecdotal experience. This is not a problem other people are having and is certainly not a firmware issue. I can say for certain that it has never happened for me.

I worked at RS during these glorious days. I only had the PS/2 version.