@Frank,
I do not see this problem. Are you sure you are using the latest Questionnaire version available for moodle 2 ?
locallib.php line 1107 reads:
$pos = strpos($resp, 'other_');

Joseph

My apologies, I have not made myself clear:
The strpos is meant I believe, to be matching other= in the text from the responses. (I think the other_ is related to something in the javascript blocks.)
ie To work the line should read other= not other_

I tested this on my system and it corrected the inability to answer all and give an other response. (This was failing for me)

The only clue in what I wrote is that one of the questionaires is in mod and one is not. I believe we are looking at the same version. Sorry again.

@Frank, I still do not understand your problem.

1.- When you say "If other and all are ticked, to many entries." I suppose that means you get an error message saying something like "Too many entries"? If not, what is the exact error message you are getting?

2.- When you say "If other only then error." If I tick the "other" box only, then I get an error message. Which error message do you get?

3.- Have you read the online documentation explaining the use of the !other setting, at: http://docs.moodle.org/20/en/mod/questionnaire/questions#Check_Boxes

4.- Could you please in your reply to this comment put the complete Question text and possible answers of the check boxes question that poses problem on your moodle site?

5.- The following question (taken from the online documentation) works fine on my moodle 2.0 and 2.1 questionnaire module:

Question text: What are your favorite hobbies?

Possible answers:

Watching TV
Dancing
Computing
!other=Another hobby:

6.- Please post question texts, screenshots, anything that clearly shows the problem. Oh, and also which type of database you are using (mySql, postGres, etc).

Joseph

Sorry about the confusion, Frank, but in your original post the title was about "radio button" and in your description you talked about checkbox. Those are 2 different question types in Questionnaire, hence the confusion that ensued.

I can now confirm that there is a bug with the radio button question type when used in conjunction with the !other parameter. I will investigate and report here...

Joseph

fixed in all versions from 1.9 to HEAD (2.2)

Thanks Joseph, that is great