M6 SL playing all songs, but not from browser

My m6 SL is currently running ver 2.004.6, and this few days I noticed it can play music from the "music"->"all songs" method , it can also play videos, record files... But it just can't play music from "browser"->"music" method. Whenever I tried the browser to music folder method, it hangs up. And after about 20 seconds it start playing the song. I have tried resetting, restarting many times and nothing help. What should I do ?

If you select all songs (or a folder with many songs) to play from the "browser" menu, there is always a delay (same with playlists). If you choose only one song it should play at once.

hi there, the delay is much longer than what i was experiencing. I have m6 sl for about 1 year and all along it has been playing the browser songs with less than 10 seconds delay. And right now it is playing with more than 20 seconds delay and sometime it will just shut off itself.