Good Morning Giuseppe,

Thank you for responding so swiftly.

I have a simple "send" page with the following code:

<input type="text" onclick="ssubmit(1, ' 1')" value= " 1 " >
<input type="text" onclick="ssubmit(99, ' 99')" value= " 99 " >
<input type="text" onclick="ssubmit(100, ' 100')" value= " 100 " >

and an "update" page with the following code:
<div data-source="lightstreamer" data-grid="roundtrip" data-item="roundtrip1" data-field="message" >
<div data-source="lightstreamer" data-grid="roundtrip" data-item="roundtrip99" data-field="message" >
<div data-source="lightstreamer" data-grid="roundtrip" data-item="roundtrip100" data-field="message" >
If I delete the third line in the "update" page, no error messages appear and the first two values are displayed i.e. " 1 " and " 99 " .

However, with the third line ("roundtrip100") included, an error is thrown and the page goes completely blank and displays neither of the previous values.

Many thanks and best regards.

Longtrain0