Descriptive Problem Summary:
Lately I have started to make a new game, and when I tried to open up a demo I have downloaded before to remember how to do something(I used BYOND website download and the Lib section in Dream Maker). The codes and icons and everything showed up just fine, but when I used CTRL+R(Run), the computer's focus temporarily went away from the file, but then went right back. There were no errors, the library did not need updating, nothing. I can open up my previous games and other's games though.

Numbered Steps to Reproduce Problem:

Code Snippet (if applicable) to Reproduce Problem:


Expected Results:
I expected to press CTRL+R(Run) and have the Demo run.

Actual Results:
The computer lost focus from the file window, then went right back. The Demo did not run.

Does the problem occur:
Every time? Or how often?
Every time I try to run a demo.
In other games?
No.
In other user accounts?
I don't know.
On other computers?
I don't know.

When does the problem NOT occur?
When I run an older game of mine or someone else's game.

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.)
This problem did not occur in other versions. I downloaded the most previous one, and it worked fine. I will be using it until this is fixed.

Workarounds:

I do not know. Besides getting a different version, of course.