. when i bought a new system it was in vista version and Norton was updated all this day was running now and 2 months back i was not happy with vista so i uploaded windows xp version now the problem is like my Norton renewed atomically that i got to no through my mail but my system is showing my Norton is expiring and still 18 days left now what to do for this please suggest me by atomically renewing the amount as been taken through my c card but my system