hi, we have problem while chat or in mailwebsites(mostly in yahoo mail)when we browing system it shows "it performed illagal operation and it will completly colsed. restart your computer and try again." what is reason for this perform please explian in details. i format harddisk also it same thing. i hope my problem may be u try to solve the problem. thank u .

Click on Details on your Illegal Operation & post back exactly what it says there. I'd also run an online virus scan at either Panda or House Call to see if you are virus free.

Uninstall Yahoo, run the IE repair tool , then reinstall yahoo. Use the uninstaller in control panel, add/remove programs. TO get to the IE repair tool: Start, settings, control panel, add/remove programs. Select IE 5.x and internet tools, hit add/remove button. In the dialogue that comes up, choose REPAIR IE. Follow prompts for repair. To reinstall Yahoo, download a fresh copy from their site.