I have a local area network of 4 computers. Two have wireless cards. All can access the internet with no problem. One wireless Sony laptop is the problem It can see all the computers and their shared drives but when any of the other computers attempt to access the Sony, they receive a message that "Sony is not accessable, etc". All computers are in the same workgroup, all are properly named, all have sharing set up correctly and there are no active firewall other than the internet connection. This problem occurred after resizing the partitions using Partition Magic. Doe anybody have a cure or encountered a similar problem after using Partition Magic?