hi i am using hp dv5 windows 7 ultimate 32 bit .. i am using 3g internet modem to surf the web. and in my office system with vista i am using the same modem. problem is in office i can easily share internet of the system to enable other systems to access net wirelessly but in house on my win 7 i am unable to do so. wheni try to setup wireless ad hoc (computer-to-compuer) connection after naming the network and feeding password it just simply says WINDOWS COULD NOT SETUP . I DONT KNW may be wind 7 is having some other procedure to share the wireless network. please do me help what should i do ..