guiminer shares 0 accepted 6 stale/invalid,what does the message mean? I am using guiminer .The pool is deepbit.com.
when I start mining, states show shares 0 accepted 6 stale/invalid
What does the message mean?
Uh Oh, the high level answer is it means you are not getting any bitcoins.

The lower level answer is harder to figure out without more information, basically, somewhere in the software/hardware stack is a problem that is preventing you from returning valid shares.  It could be a hardware problem but most likely it is just a configuration problem.

In the comments below, can you answer:
1:  What hardware are you running this on?  CPU?  GPU? model?
2:  What does your GUIminer window look like (attach a screen shot).
3:  Did you create a worker on deepbit.com?

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