Bad MOD, IT, MP3 and Wave sound
 

I've just finished download of the latest version of Winamp. And now the sound in MOD, IT, MP3 and Wave files sounds REALLY wierd and bad. Distortion is the best word to describe it. However if I play SPC files (special files that includes the Super Nintendo's sound memory and a SNES song, external Winamp plugin) then it sounds without any distortion. Why? Nothing had distortion with the version I had before. I've tried overwriting my new plugins with the old plugins, to no avail. Help! I have a Pentium 4 @ 1.3GHz, 384MB RDRAM, SBLive! Value.