Can no longer drag files from OS X itunes library directly to trash?

up until a few days ago...maybe after 9.0.3 update...on my macbook pro under snow leopard, im certain i could drag files from itunes library or a playlist into the trash. if i drug the file from the library to the trash, you would here the trash can "eating sound" and it would be gone from the library (one step). if it was from a playlist, it would delete that file from the playlist but not from the library as expected. now, i cant do either. now i have to right click and delete the file/s and then click move to trash.

just would like to know if this is universal and if theres a way to get that function back...

thanks

 

if i drag a file from the desktop to the trash, theres an audible sound that differs from the sound heard when emptying the trash. i used to hear this same sound when dragging files from the main music library to the trash. i could then use the search window in the top right corner to look for that file and it would turn up no results (it was deleted from itunes library). now however, when dragging a file directly from itunes library to the trash, the trash will not except the file, no sound is heard and the file is just where it was in the library.