Are you shure that do do not hear the unamped sound of the guitar strings.?
Try with higher volume to verify.
oops, after recording the effect, i believe Sharry was right (never thought the unamped guitar is that loud). Sorry I feel utterly ashamed for that. At least i learned howto restore/reset the KPA and theres a lot of helpful and nice ones over here!
Ciao, Bernd