[Rd] bug in windows GUI/script editor (PR#8288)

[roberto.ugoccioni@sanpaoloimi.com]

Full_Name: Roberto Ugoccioni
Version: 2.2.0
OS: Windows 2000
Submission from: (NULL) (193.203.232.5)


Running Windows 2000 Professional, all patches up to nov 8, 2005.

> version
         _              
platform i386-pc-mingw32
arch     i386           
os       mingw32        
system   i386, mingw32  
status                  
major    2              
minor    2.0            
year     2005           
month    10             
day      06             
svn rev  35749          
language R  

How to reproduce the bug:

1. launch Rgui.exe
2. menu File->open script
3. close editor clicking on X
4. clicking menu File now generates the fatal error (omitting memory
addresses):

 An instruction referred to a memory location which could not be "read"

Clicking on OK in the error message window causes R to consume 100% CPU and not
to respond - must be terminated from task manager.