[Pidgin] #13018: Can't install 2.7.7 on Win7x64

[Pidgin]

#13018: Can't install 2.7.7 on Win7x64
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 Reporter:  mark0978      |     Owner:  rekkanoryo
     Type:  defect        |    Status:  new       
Component:  unclassified  |   Version:  2.7.7     
 Keywords:                |  
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 Greys out the install button, won't let you select a directory (OK button
 is disabled)

 Trying to upgrade from 2.7.6 to fix the MSN problem, but no can do, no
 idea why either (no messages or dialogs displayed, buttons are just greyed
 out)

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Ticket URL: <http://developer.pidgin.im/ticket/13018>
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