sound garble when changing keys

[bendrew]

Let's forget recording not to confuse you. even we're playing, the sound garbled or should i say rumbled. I have no problem before and never noticed it when my friend mentioned this to me. Normal key setting (0) is fine except when key changed... It's not a big deal for me but better to submit this for a solution and for the other people using hoster. Both computer is windows 7 and working fine except for that one problem..