OK, I have an old (and borrowed

) 5-string Samick bass and in about 6 days I am going back to school and will be layin down the groove for my school's band.
Unfortunately, the E string on my bass (and the Lower D string when Im playing pick) buzzes like crazy. So far the only way I've found to stop this is to play extremely softly with my fingers and crank the volume. I am sure that I am not causing the noise because while playing different basses at shops I never have any buzzing problems.
So, what can I do about this? I'm pretty sure I need to take it to a shop to have it re-set up properly but my parents are dead set against that idea beacuse it isnt my bass and they think it costs $50+ dollars just to look at the bass (Please tell me that they got a load of bull from someone)
(Disclaimer:I want to get my own personal bass but they say
I have to have a year of lesons first... If they'd just let me get my own all these problems could be avoided completely.....)