Well, when I try to press the attachment button it opens up the window for 0.2 seconds then closes. And when I try to download replays, it downloads it but I can't open it. I think my problem is because I have to open Toribash as an administrator, but I can only do it in the main Toribash game exe, not replay downloads. Why is this happening?

are you clicking manage attachments or the little button above the text?

Yes...