Trouble opening Zoho Writer

Trouble opening Zoho Writer

Hello,

I have been using Zoho Writer since midsummer and I'm finding it very useful.

One problem: at work I am on a computer where Zoho Writer just hangs and refuses to open. I've attached a screenshot with the Java Error Console open. I thought originally it was because the computer wasn't using the latest version of Java, but it got upgraded today and the problem remains. I tested it after reboot; I tested it on Firefox, IE, and Desktopize -- same problem in all formats.

Specs:
Firefox 2.0.0.6
IE 6.0.2900
Java Version 6 Update 2; Java Plug-in 1.6.0_02 for Netscape Navigator (DLL Helper)

I can use it fine in other computers at the office; I can use it fine at home (running Firefox on Kubuntu); I just can't do it here and I don't know why. Can you help?