Web Page Show Blank Page

I have a simple project containing two pages. Screen1 and Screen2.
Screen2 contains two .NET controls (Datetime picker). Screen1 is main screen.

I set up web project architecture with IIS and IWS Data Server on different computers.
The IIS server is using Windows 2008 with IP 192.168.204.128, while IWS Data Server has IP 192.168.204.129. The Firewall is disabled on both computers.

So, on the project setting, i set up IP Data Server = 192.168.204.129, and Web Tunneling Gateway IP = 192.168.204.128. All necessary setting based on the documentation has been done on the IIS computer. The ISSymbol URL is http:\\192.168.204.128\web\.

After verifying the project and publishing the project as html, i copied the web folder to the wwwroot folder on the ISS computer.

When i ran the project using IE (ActiveX is enabled), and executed http:\\192.168.204.128\web\screen1.html, the IE was asking for ISSymbol download, but when download finished, the html page showed blank page and showed error message "Done, but there is error on the page".

I don't have this problem if IWS Data Server and Web Server are on the same computer.

Please help, urgent.

Thanks in advance.