I'm a long time K2 user (since the J1.5 days) but now I'm stuck.

I'm trying to use the Upload feature on the Media tab in K2 to upload MP3 files. However, it keeps giving me "Failed to move file".

The permissions of my media/k2/videos and media/k2/audio are both 755. I tried 775 and 777, but these permission didn't help either (and I'm not comfortable with 777 of course).

File sizes are low. Under 3MB, and I have setting set to allow MUCH larger file uploads.

I also tried via the Browser server or use remote media and tried to upload there, but that didn't work either.

Is there something I'm missing? Is there a tmp folder I should be looking at?

Any help would be greatly appreciated.