Bread-Bakers v100.n025.8

I've got a wonderful smelling sourdough starter.....started.  It looks
great.....smells so sour doughy....I get all excited about using it after
keeping my little pet going for 3 weeks.  Then my bread and rolls I've 
tried to make don't taste like sourdough at all.  They taste almost like 
regular bread.  Any suggestions?

Regards,

Lynne