Sorry, I vanished for a couple of days but have been sweating it out with the flu.

I followed the advice above and looked in the registry but no line relating to Avast in there. Did not alter the registry in any way but when I rebooted the program did not go through the boot scan. However, I now get an error message that autocheck.exe can’t be found.

I am new to Win XP and not that familiar with the registry
What is autocheck and how do I restore it?

Everything seems to work OK except when I cold boot, I do not have an internet connection until I reboot.