Descriptive Problem Summary:
Whenever an in-game popup is closed, two dialogs appear (image below), one of which is the Internet Explorer download progress window.


(Filepath points to My Documents\BYOND\cache)

This only started happening recently and is probably a result of something that has changed on my machine, but I can't figure out what.

Numbered Steps to Reproduce Problem:
This is unlikely to trigger the problem on other computers but will cause it every time on mine.

1: Join any server
2: Perform any action that opens a popup (MOTD, server rules popup, etc)
3: Close the popup

Expected Results:
Popup closes, nothing else happens.

Actual Results:
Popup closes, IE download progress dialog and Open/Save dialog both open simultaneously, closing if any option is selected on the Open/Save dialog.

Does the problem occur:
Every time? Or how often? Every time.
In other games? Probably, but have only tested in Space Station 13.
In other user accounts? I only have one user account on this computer which has admin privileges.
On other computers? Probably not, but haven't tested.

When does the problem NOT occur?
When closing dialogs that contain no HTML. (Probably any dialogs that don't save to the BYOND cache folder)

Did the problem NOT occur in any earlier versions? If so, what was the last version that worked? (Visit http://www.byond.com/download/build to download old versions for testing.)
It didn't occur several months back, but I have tested in earlier BYOND versions and the problem occurs in those as well.

Workarounds:
None that I know of.