Seemless sound loop

[ukspursbloke]

I'm working on a site, and I want the music in it to loop. The original sound file had a slight flat delay before any sound, this caused a slight sound gap between loops, whereas when it looped for about half a second there was no sound.

So i went about editing the sound file, so there was no flat line before it started. I did this and saved it. But when I import it into Flash, it seems to create a sound gap.

http://img20.imageshack.us/img20/8864/soundgapkx5.jpg

So basically, im asking is there anyway to get rid of this so the loops are seemless?