adding attachments really is fast, but it takes a very long time until the window has opened up at all...
Handyman, try changing to the blue theme.
See if that helps.
If it does, then the problem is with the dark theme.
If not, it's something else.
OK, I guess the dark theme is broken now.
How odd.
It looks like the dark theme is working right now.
I can read and send PM's