[Beta update error]

I went to do a beta update today and I got an error message that said "unable to delete file". It gave me the option to abort or ignore and I accidentally clicked ignore and it went ahead and did the update. Now Big Box won't launch. What can I do to fix this? Thanks in advance!

[Escape key not closing emulator?]

OK, sounds good. I'll watch some videos and get myself up to speed. Thanks!

[Escape key not closing emulator?]

No but I'm going to work on setting it up and going that route. Thanks for your help.

[Escape key not closing emulator?]

The escape key just brings up the menu. Which emulator would you advise for NES. I watched your set up video and I thought it was Nestopia.

[Escape key not closing emulator?]

nestopia.

[Escape key not closing emulator?]

I've just done a new install and i can't get the escape key to exit the emulator. Maybe I'm forgetting something. Any ideas?