As long you neither you nor we know what they did in the shop, it's not really possible to tell you how to undo it.
And if you don't even tell the errors, but limit yourself to "no longer works" and "can't send" you don't give enough information to the forum to get any effective help.
Two things you can do:
- go back to the shop and let them fix it
- uninstall and reinstall aol software
Hope this helps.
my pc was running very slowly so i had it in the shop. when i got it back, my aol browser no longer worked. also i can't send email using aol. internet explorer still works fine though. i have made aol the default browser, but that didn't do anything. the computer is running aol 9.0 on a 56k dial up connection, windows me, 800mhz amd duron, 128mb ram, 20gig hd. please help.