Editable cell in table not working on Safari 5 on Ipad 1

In my web site, I have a table in which the user can enter data.
So, one of the column is editable.

It works perfectly on Firefox, Chrome, IE on Desktop and on Safari 4 on Ipad 1.

However, I tried it on Safari 5 ... and it does not work anymore.
The field appears as editable, but, when I click on it, the keyboard is not displayed.
So, I am not able to enter a value.

The code for my table is :

allocations = new Table("Allocation");
        allocations.addStyleName("my-switch-sell-table");
        allocations.setWidth("100%");
        allocations.setNullSelectionAllowed(false);
        table.setSelectable(true);
        table.setImmediate(true);
        table.setPageLength(9);

        allocations.setContainerDataSource(model.getAllocations());
        allocations.setColumnWidth("fundName", 290);
        allocations.setColumnWidth("currency", 40);
        allocations.addGeneratedColumn("valorisation", new VfDecimalColumnGenerator());
        allocations.setColumnWidth("valorisation", 80);
        allocations.addGeneratedColumn("unitPrice", new VfDecimalColumnGenerator());
        allocations.setColumnWidth("unitPrice", 80);
        allocations.addGeneratedColumn("unitsHeld", new VfDecimalColumnGenerator());
        allocations.setColumnWidth("unitsHeld", 80);
        allocations.setColumnCollapsingAllowed(true);
        allocations.setColumnReorderingAllowed(true);

        allocations.setColumnWidth("switchValueByAmount", 100);
        allocations.addGeneratedColumn("switchUnits", new VfDecimalColumnGenerator());
        allocations.setColumnWidth("switchUnits", 80);
        allocations.setColumnWidth("switchValueByPercentage", 100);
        allocations.setColumnWidth("switchValueByUnits", 100);
        if (SwitchType.BY_AMOUNT.equals(type)) {
            allocations.setVisibleColumns(new String[]{"fundName", "currency", "valorisation", "unitPrice", "unitsHeld", "switchUnits", "switchValueByAmount"});
            allocations.setColumnHeaders(new String[]{"Fund name", "Ccy", "Valuation", "Unit price", "Unit held", "Switch Units", "Amount to sell"});
        } else if (SwitchType.BY_PERCENTAGE.equals(type)) {
            allocations.setVisibleColumns(new String[]{"fundName", "currency", "valorisation", "unitPrice", "unitsHeld", "switchUnits", "switchValueByPercentage"});
            allocations.setColumnHeaders(new String[]{"Fund name", "Ccy", "Valuation", "Unit price", "Unit held", "Switch Units", "% to sell"});
        } else if (SwitchType.BY_UNITS.equals(type)) {
            allocations.setVisibleColumns(new String[]{"fundName", "currency", "valorisation", "unitPrice", "unitsHeld", "switchUnits", "switchValueByUnits"});
            allocations.setColumnHeaders(new String[]{"Fund name", "Ccy", "Valuation", "Unit price", "Unit held", "Switch Units", "Units to sell"});
        }

        allocations.setTableFieldFactory(
                new TableFieldFactory() {
                    public Field createField(Container container, Object itemId, Object propertyId, Component uiContext) {
                        if (propertyId.toString().equals("switchValueByAmount") ||
                                propertyId.toString().equals("switchValueByPercentage") ||
                                propertyId.toString().equals("switchValueByUnits")) {
                            TextField resultField = new TextField();
                            resultField.addStyleName("right-text-field");
                            return resultField;
                        }
                        return null;
                    }
                });
        allocations.setEditable(true);

Is there an error in my table that could lead to this problem on Safari 5 ?
Does anyone already have this problem ?

Regards

Pierre

Nobody had the same issue ?

Regards

Pierre

I still have the same issue.
I am not able to have editable cell in a table on IOS 5.x

As this IOS is used for Ipad 2 and Ipad 3, I am not able to use this functionality.

Did someone already try to have editable cell on a system using IOS 5.x ?

Thanks in advance

Pierre