Columns not holding their positions since OS reinstall

[highstream]

If you mean dragging by the edge vs. the middle of the Ext column, then I've been doing it by the edge. If you mean am I changing the column order, then the answer is no I'm not.

[bdeshi]

Ah, disable Tools > customize List > Autosize columns

[highstream]

Finally! That looks like it. Don't know why that's enabled by default. Many thanks for your working through it with me.

[bdeshi]

Great. The 3rd screenshot's fat name column was a helpful clue.

[Stef123]

Hmm - all I can tell you, play with these settings:
Tools > Customize List > Autosize Columns
...

So why did you say you tried that when you didn't? Anyway, glad to hear you got it worked out eventually.

[highstream]

Hmm - all I can tell you, play with these settings:
Tools > Customize List > Autosize Columns
...

So why did you say you tried that when you didn't? Anyway, glad to hear you got it worked out eventually.

I wrote that it was checked, but the point I missed was to uncheck it.