A new version of JRE has been installed. Your browser needs to be restarted for these changes to take effect.

I got this error when I open Internet Explorer and enter the Contract Manager web address.Our client is just using this Primavera Expedition on their LAN. So when you enter even just the IP address of the Primavera Expedition server, you will get this error:

"A new version of JRE has been installed. Your browser needs to be restarted for these changes to take effect.

Please click OK to close the browser."

When you click the OK button, IE is automatically closed, and you cannot access your Contract Manager website at all. In some cased it will not close but it will ask you this question:
The webpage you are viewing is trying to close the windows. Do you want to close this window? If you click "Yes" it will close the browser. If "NO", you can enter in the Contract Manager's page but it will always ask you to do it over and over again which is very annoying in which there is a solution to this problem.

The problem is that your IE fails to install the new version of Java Plugin in your browser due to security reason, and Contract Manager doesn't need the new version of Java Applet at all, and it provides the supported JRE in your Contract Manager website for download. But the Java keeps checking the new version of JRE and tries to install in your machine when it's applicable.

Here is the solution:

1. Disable Java update checking:
a. Go to the Control Panel
b. Double-click Java (In X64-bit Windows, you need to select View x86 Control Panel Icons first), and open Java Control Panel dialog.
c. Then select the Update tab, uncheck the Check for updates automatically option.
d. Next select the Adavanced tab, expand the JRE Auto-download, select Never auto-download.
e. Finally, close Java Control Panel.

2. Remove unnecessary versions of JRE:
a. Go to the Windows Control Panel, open Add/remove programs, remove all the JRE versions that are newer than 6.0 version. Because if Contract Manager does not sees the JRE version needed, it will ask you to download from its site.

After the two steps above, restart your IE, you should be able to access your Contract Manager.

As of the moment(July 08, 2009), the recommended IE and Java versions for Primavera Expedition 12.1 are the following:
* Internet Explorer 7
* Java - JRE 1.6.0_03

You need to install the above versions to the client side and Primavera server. In addition to the server side, you need to install this:
* J2SE Development Kit 5.0 Update 13

Goodluck!