I've added a number of user profile fields (34 of them!)(using Admin > Users > Accounts > User profile fields), have found that I put them in in the wrong order, and and am now trying to re-order them by clicking the up and down arrows next to them.

Unfortunately, this isn't working as expected, and it's making it very hard to get them in the right order. Here is some of the unexpected behaviour:

-one click of the up arrow will skip a field past several other fields
-a field will be able to move only so far up in the order of fields, but no further.

All of the fields are "Menu of choices" types, and have the "Description of the field" filled, and a default value.

Many / most of the fields have the following settings:

Is this field required? YES

Is this field locked? NO

Should the data be unique? NO

Display on signup page? YES

Who is this field visible to? VISIBLE TO USER

Category: "Other information"

Our sysadmin has kindly supplied a listing of mdl_user_info_field, part of which I've copied below.

It looks like some of the new fields are tied for sort-order.

Also, the field that could not be moved up beyond a certain point (sortorder=23, id=34), seems to have arrived at a discontinuation in the sort-order numbers - it's at number 23, and the next one up in the table is 20.

This occured when attempted in both Firefox 2 and IE 6.

The list below contains the complete set of all the new profile fields in the system - the id numbers are not contiguous because some fields were deleted.

id shortname datatype sortorder
2 discipline menu 2
3 nonSocSci menu 3
4 DisciplinesOther text 4
30 qualification menu 10
32 IntendedUse menu 11
14 descStats menu 12
15 tTest menu 13
16 anova menu 14
17 linear menu 15
18 multipleRegression menu 16
19 logisitcRegression menu 17
20 multinomialLogit menu 18
23 orderedLogit menu 19
22 factorAnalysis menu 20
34 statsExperience menu 23
35 survivalAnalysis menu 24
12 department text 25
13 howHear menu 25
36 structuralEqnModelling menu 25
31 tSeries menu 26
37 integration menu 26
38 differentiation menu 26
39 matrixAlegebra menu 26
40 probDistributions menu 26
9 attendedWorkshop menu 27
10 position menu 27
11 university text 27
8 ownMLwiN menu 28
7 researchInterests text 29
41 expVariance menu 30
42 maxLikelihood menu 31
43 numericalProc menu 32
44 bayesianInf menu 33
45 mcmc menu 34

Our sysadmin manually updated the sortorder numbers so that they ran in sequence and with no tied positions, starting at 1. This seemed to cure the problem - it became possible to click an up arrow on a field at the bottom of the list of fields, and move it one position up, and repeate until it got to the top of the list of fields.