Search Not Working in WebHelp - Suspected Java Issue

Question

The Search function in our output WebHelp system is not working from one user's laptop.  The WebHelp is generated from our RoboHelp 8.  Search does work in everyone else's access to the system.  This Windows 7 laptop displays an "Error on Page" message when he enters a search value and then chooses the Search button.  He says the same error occurs for the Index. Because no other users have this problem, we are definitely thinking it's something in his laptop configuration for Java - as we see the JS file references in the error details, as shown below.
The details for the "Error on Page" message are referencing the following messages and JS files
Index error messages in details:
Object doesn't support this property or method - whthost.js
'innerHeight' is undefined - whutils.js
Search error messages in details:
Object doesn't support this property or method - whthost.js
'innerHeight' is undefined - whutils.js
'gaFakes[...].nB' is null or not an object - whhost.js
'Node' is undefined - whfhost.js
What should he check in his Java?  He's using Java 6, Standard Edition, update 16.  Any ideas or suggestions about what he should check on this laptop?  I would appreciate your help and expertise in solving this mystery!  Hopefully I've provided enough details here - but let me know what else I need to provide.
Thanks so much,
Susan

Answer 1

We were getting this error sometimes.
I modified the code in wsutils.js as follows:
Original code:
function    getClientHeight()
    if(gbSafari3)
         return innerHeight;   //this is for safari
return document.body.clientHeight;      }
New code:
function getClientHeight()
return document.body.clientHeight;
Seems to work (at the cost I guess of losing support for safari browsers - but I haven't tested that), but I can't test that it never fails because it was an intermittent fault...
Pete