The DBSTalk chat does not work "out of the box" with Windows Vista. You will need to apply the following fix to use the Chat site if you are on Windows Vista.
From:
Getting Chat to work with Vista - DBSTalk.Com
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I found the solution which I have tailored for our site below:
I have used this and for the FIRST TIME, I can see the Chat Room from my Vista Computer.
SYMPTOMS:
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If, when loading the chat room, the blue loading bar appears for a very long time, and the chat room applet never comes up, the following may help you to immediately resolve the problem. This problem is also associated with very slow page loading using Firefox, and slow eMail sending/retrieval using Thunderbird.
The following solution applies to Windows Vista users only.
SOLUTION:
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The Windows Vista TCP Stack has been re-written. The following solution appears to correct many internet-related issues with Windows Vista, and seems to resolve the problem. There should be no negative effects from performing the following; but we have provided you with instructions for undoing this should you feel it necessary.
Part I: Disable TCP Autotuning
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1. Click the Start (Windows Logo) icon
2. Select 'All Programs'
3. Select 'Accessories'
4. Right-Click on 'Command Prompt'
5. Click 'Run as Administrator'
6. A dialog box will ask you to confirm. Click the 'Continue' button to proceed.
7. Type: netsh interface tcp set global autotuning=disabled
8. Press 'Enter'
9. The message 'Ok.' should appear.
10. Type: exit
Part II: Empty your Java Cache
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11. Visit
DBSTalk.Com -
12. The Java icon will appear in your task icon list in the lower-right hand corner of your screen
13. Right-click the Java (coffee-cup) icon and select 'Open Control Panel'
14. Under 'Temporary Internet Files', click 'Settings'
15. Click the 'Delete Files...' button
16. A window titled 'Delete Temporary Files' will appear. Make sure all options are checked and click 'OK'
17. Click 'OK' to exit the 'Temporary File Settings' window.
18. Click 'OK' to exit the Java Control Panel
Part III: Empty your browser's cache
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11. Clear your browser's cache.
12. Shut down all instances of your web browser.
That's all. You may now try to load the chat applet.
This issue is likely to work itself out in the near future as future updates of Windows Vista and Java are released to the public -- once these updates have been released, your users will not be required to go through the above procedure.
How to Un-do the above steps
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If, for any reason at all, you need to undo the above procedure, follow these steps:
1. Click the Start (Windows Logo) icon
2. Select 'All Programs'
3. Select 'Accessories'
4. Right-Click on 'Command Prompt'
5. Click 'Run as Administrator'
6. A dialog box will ask you to confirm. Click the 'Continue' button to proceed.
7. Type: netsh interface tcp set global autotuninglevel=normal
8. Press 'Enter'
9. The message 'Ok.' should appear.
10. Type: exit