i have troubles with the bridge on my b.c rich when stringing it up.the problem i have is the bridge.when i string it up sometimes it might be sitting up making the action terrible.is there a way i can know to do it perfect?i know some1 else has had this problem before. any help apreciated.

The bridge is sitting up? What does that mean?
Regardless of whether its like fixed bridge or Floyd Rose, it should stay at normal angle even without the string tension. The bridges are designed to be able to divebomb and what not but they wouldn't be loose to do that?

Anyway, might help if we knew what you meant and what kind of bridge you have on the guitar.

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