Have the computers where the code does not work had security options beefed up, such as not allowing scripts or Java to run? Do they have Java installed?
Steve
Life's too short for bad coffee, bad chocolate, and bad red wine.
They will be browser settings, usually under security or add-ins.
In IE click the gear icon at the top right of screen and select Internet options from the context menu. Check the options on the Privacy and Security tabs are the same.
Click the Advaned tab and scroll through the settings until you find security. Check they are the same.
It could also be something set up by your system admins, it might be worth asking if they know why the pages work on some machines and not others...
Steve
Life's too short for bad coffee, bad chocolate, and bad red wine.