Problem with non-ASCII texts in IronPython Studio

Question

I have Installed VS2008 and IronPython Studio (Isolated). Trying to add some Persian text in anywhere (on a bottom, form's title etc), and save the project, an error given. IronPython Studio stops working and damages the project (I can't open it again)

Details of the given error:

Description:
Stopped working

Problem signature:
Problem Event Name: CLR20r3
Problem Signature 01: ironpythonstudio.exe
Problem Signature 02: 0.0.0.0
Problem Signature 03: 475d5fa1
Problem Signature 04: IronPython
Problem Signature 05: 1.1.0.0
Problem Signature 06: 469fe82f
Problem Signature 07: 147
Problem Signature 08: aa
Problem Signature 09: System.Text.EncoderFallback
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033

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