That was one of my rigs I use a lot from Djemass.
Boogie C2C+LEAD.
To what it is worth, I have just tried this old profile with FW5.0 and it sounds as it is supposed to sound.
Something is definitely wrong with your unit. I am sorry but I have seen elsewhere which FW you are currently using and if you tried downgrading the unit and test the profile (FW 3.3 for instance...).