Help, i have messed up

Dear All

I have the my book 2tb nas drive, its my first experience with network storage and i think ive messsed it up!!

With out thinking, in the public folder (i.e music photos videos) i added another folder for general items to share among the household, however once i did that it messed up totally my connection with my xbox360 went from finding everything to finding no videos. Now, i have got rid of that new folder after reading the error of my ways, however it hasnt worked since.

Because its new i havent even tried to generate a restore point, so before i don something drastic, i.e delete 1 tb of files (i took 2 days to get it on there!!) is there anything i can do??

p.s the computers in the house still pick up the shared folders - just not the xbox