stack overflow at line:0 continues to appear. what does this mean? how do i fix/get rid of this message?

What are you doing/running when you get this message? The error message means some program is failing and you have to find out what it is. Start by making sure the computer is virus/malware-free:http://www.elephantboycomputers.com/page2.html#Removing_MalwareIf the computer is not infected and the problem persists, manage your Startup (possibly including clean-boot troubleshooting) to find out what is running in the background so you can take appropriate action.Start>Run>msconfig [enter]This brings up the System Configuration Utility. Look on the Startup tab and find the probable culprit. Uncheck the box next to its name, Apply and OK out. You don't need to restart immediately, but the next time you do you'll get a dialog saying you've used the Utility. Just tick the box that says in effect, "don't bother me about this again".Important - Do not use the System Configuration Utility to stop processes. Instead, use Start>Run>services.msc [enter]and do not stop any services unless you really, really know what you're doing.How to Troubleshoot By Using the Msconfig Utility in Windows XP -http://support.microsoft.com/?id=310560The free Autoruns program is very useful for managing your Startup -http://www.microsoft.com/technet/sysinternals/default.mspxClean boot in Windows XP -http://support.microsoft.com/kb/310353Clean-boot advanced troubleshooting in Windows XP -http://support.microsoft.com/kb/316434MS-MVP - Elephant Boy Computers - Don't Panic!