Deploying from winXP to win7 with Crystal Report! HELP! pls

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Deploying from winXP to win7 with Crystal Report! HELP! pls


I try to deploy my system in my own machine having Windows XP as the OS.. after it, it was successfully run .. all are running well...after that i try to deploy it to different machine.. that different machine has a Windows7-64bit OS..... after installing all the necesarry things like the database(i use mysql as database), mysqlconnector..... the system runs then.. all buttons are functioning well except for the reports(that reports was on crystal report) that should be printed... there is an error ... the error is something like this and i dont know what to do....:

"

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.InvalidOperationException: An error occurred creating the form. See Exception.InnerException for details. The error is: The type initializer for 'CrystalDecisions.Shared.SharedUtils' threw an exception. ---> System.TypeInitializationException: The type initializer for 'CrystalDecisions.Shared.SharedUtils' threw an exception. ---> System.IO.FileNotFoundException: Could not load file or assembly 'log4net, Version=1.2.10.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' or one of its dependencies. The system cannot find the file specified.
at CrystalDecisions.Shared.SharedUtils..cctor()
--- End of inner exception stack trace ---
at CrystalDecisions.Shared.SharedUtils.get_CurrentControl()
at CrystalDecisions.Shared.SharedUtils.GetEffectiveCulture()
at CrystalDecisions.Shared.LocaleManager..ctor()
at CrystalDecisions.Windows.Forms.CrystalReportViewer.InitReportViewer()
at CrystalDecisions.Windows.Forms.CrystalReportViewer..ctor()
at WindowsApplication1.frmPrintMemberSum.InitializeComponent() in C:\Documents and Settings\Owner\Desktop\Middle_East\Gym_Management_System\WindowsApplication1\WindowsApplication1\frmPrintMemberSum.Designer.vb:line 26
at WindowsApplication1.frmPrintMemberSum..ctor()
--- End of inner exception stack trace ---
at WindowsApplication1.My.MyProject.MyForms.Create__Instance__[T](T Instance) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 190
at WindowsApplication1.My.MyProject.MyForms.get_frmPrintMemberSum()

.........

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can anyone save me??? please....