Display settings automatically changes on opening or closing yahoo messenger

Hi,
When i open yahoo messenger, my screen resolution automatically changes to 800 by 600 pixels from 1024 by 768 pixels. When i close it, comes back to 1024 by 768 pixels. Whats going on? Any idea?

Thank you for any suggestion.

I think your system is infected. Update your antivirus and run full system scan. Try to use some free antivirus like AVG, avast, etc. Also run some antivirus application like anti-spywrae and anti-malware programs.
Edit/Delete Message

Which version of yahoo messenger you are using? If you are using any older version, get the latest version: http://forums.techarena.in/technolog...et/1065902.htm. Download and install it and check if you are facing the same problem.

I know it is very irritating. I had the same problem. But the solution is very easy. Follow the steps given below to fix it:

• Go to C:\Program Files\Yahoo!\Messenger
• Right click on the yahoo messenger.exe icon (yahoo messenger logo)
• Click on Properties
• Then click Compatibility tab
• In Display Settings, untick the 'Run in 640x480 resolution box'

I have tried this twice and it didn't work. Anyone have any other suggestions.