Duplicate instance exception

hi, all

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my project:

Component A: Window A : View 1-View 2-View 3

|||||||||||||||||||||||||||| Window B: View 2- View 3

|||||||||||||||||||||||||||| Window C: View 3

Component B : Window X : VIew X---- Used Window B

|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |----

UsedWindow C ( another link to WindowC)

App: Component B

App1 App2 ......and some other app...

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my issue:

run App, get View X.

link to View 2(WindowB), link to View 3, back, back, link to View 3(WindowC) //that's all right

link to View 3(WindowC), back, link to View 2(WindowB), link to View 3 //error.......

error message: Duplicate instance exception: There is already an instance of view XXXX in component YYYY.

any advice?

thx in advance.

fishy

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