crash when cancelling out of file overwrite

[GoogleCodeExporter]

What steps will reproduce the problem?
1. set recorded file to overwrite an existing file
2. switch "write to file?" on
3. click Start.  the following message appears: File test0001 exists. 
4. click Cancel.  the following message appears: Cannot access a disposed 
object. Object name: 'Task'.
5. click OK.  GUI freezes.

What is the expected output? What do you see instead?
I attached a text file of the output (after I stopped debugging).

What version of the product are you using? On what operating system?
Stable-340 on Windows Vista (Annihilatrix in Potter lab)

Please provide any additional information below.
The warning message that appears says "File test0001 exists" regardless of what 
file name was specified.  This does not cause any crash, but also could be 
addressed.

Original issue reported on code.google.com by mingfaif...@gmail.com on 20 Jul 2011 at 9:59

Attachments:

• NRoutput_2011-07-20.txt

[GoogleCodeExporter]

I fixed this in revision 360 or so. Thanks for the heads up and excellent bug 
report.

Original comment by jonathan...@gmail.com on 26 Aug 2011 at 5:29

[GoogleCodeExporter]

Marked as fixed

Original comment by jonathan...@gmail.com on 26 Aug 2011 at 5:30

• Changed state: Fixed