I have disabled all viewer plugins & restarted.
I'm running a dual view lister. LHS has been set to %TEMP%. RHS set to D:\Development\C#\blah\blah\blah. Running detail view.
I copy a 0 byte file with the name "CVR35A01.tmp.cvr" from %TEMP% to D:
Copy again, dialog appears (empty 'document' icon'), I click the 'X' to close the window and bang!
Every time, I don't even have to wait to reproduce.
O/S Win 7 Enterprise 64bit.
Hope that helps.