Inventory Columns Won't Show

[Jagoff_Haverford]

1. I open the inventory.
2. I click on one of my station containers.
3. I set the format to either “Details” or “List”.
4. I right click on the column headers at the top of the window.
5. This gives me a list of other columns that I can show.
6. I click on one of these potential columns, such as “Show Volume”.

And the column (usually) simply doesn’t appear. Sometimes – maybe once out of every 20-30 attempts – it will appear. But usually nothing happens at all.

Any ideas?