[Rd] problems with tcltk in R 2.0.1 (PR#7698)

[vidarh at imr.no]

Full_Name: Vidar Hjellvik
Version: 2.0.1
OS: windows
Submission from: (NULL) (82.134.28.194)


I have an tcltk application that runs without problems in R1.9.1, but when I
press the "run"-button (and other buttons as well) in R2.0.1, I get the
message:

"Error in function ()  : can't change value of a locked binding".

I have another tcltk application that runs fine on R2.0.1, so tcltk seems to be
properly installed. 

The source code is available at ftp.imr.no/vidarh/diva.zip