The Lighting Controller

Hello everyone!
I just made a new Lightshow and set a red point to re-play it. Suddenly my mouse turned into the loading-circle (Windows 7) for a second. I clicked play, the Lights go on but i do not hear any Audio.
I saved the Timeline and opened it again - The same problem. I tried it with some other Lightshows and other Audio-Files (WAV and MP3) but it won´t work.
I checked the volume control of Windows, although i didn´t change anything, but ScreenControl was turned up completely. I also tried it on other Profiles.
I don´t know what i should do!!
Please help!

Lighter007

So, if we right understood:
- everything was working well before
- now, nothing works anymore
Please confirm.

Exactly.
BUT as i rebooted my computer this morning, everything works without problems.
I still don´t know why that happened, because i never had ANY problems with Sweetlight.
Strange...
I think, the topic can be closed and archived.
Lighter007

Noted.