<div>
what is the site they are accessing? is it public?<br />
<br />
can you reproduce in other browsers?
</div>


what is the site they are accessing? is it public?

can you reproduce in other browsers?

<div>
OPERA PMS<br />
They can't use other browsers
</div>


<div>
never heard of opera pms.<br />
please supply a public link to it
</div>


never heard of opera pms.
please supply a public link to it

<div>
That won't be possible, sorry
</div>


<div>
You need to check the log files of this PMS system you speak of.
</div>


You need to check the log files of this PMS system you speak of.

<div>
please don't award me the points just to close the question. I would like to help you resolve it if I can or get the help of other experts.
</div>


please don't award me the points just to close the question. I would like to help you resolve it if I can or get the help of other experts.

<div>
<div class="content wysiwyg-content">
Hi<br />
<br />
When users at this client's site close Internet Explorer (9) they receive an error<br />
and then a page opens up with the following heading &quot;500 Internal Server Error&quot; followed by lines of text<br />
The users mostly access a website that uses Java <br />
<br />
Is there a way to avoid/disable this error display ?
</div>
</div>


Hi

When users at this client's site close Internet Explorer (9) they receive an error
and then a page opens up with the following heading "500 Internal Server Error" followed by lines of text
The users mostly access a website that uses Java 

Is there a way to avoid/disable this error display ?

500 Internal Server Error

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.

Java

Windows 7 is an operating system from Microsoft. Features include multi-touch support, a redesigned Windows Shell with a new taskbar, referred to as the Superbar, a home networking system called HomeGroup, and performance improvements.