Excel 2007 Workbook_open not working

Hello ,
I am trying to clear Print Area And Autofilter when excel opens:
Am total novice in Excel vba so Assmebled the followingcode from googling around
This code I have put in ThisWorkbook of Personal.xlsb in the XLstart folder and ofcourse the macro security has been set to enable all macros

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Here is the ClrPrntArea

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I will also be putting another macro call to module in personal xlsb for resetting the autofiter once above starts working..Any inputs will be really helpfull

Tanks,
~Kamlesh

cross-posted http://stackoverflow.com/questions/1...en-not-working