Never mind, I found out that there was a bug that made certain VMware versions had a security issue with NAT-mode.
"VMware has issued updates to VMware Workstation, VMware GSX Server, VMware ACE, and VMware Player to address a potential vulnerability in the NAT networking component of these products."
"The following versions correct the problem:
For VMware Workstation 5.x: VMware Workstation 5.5.1 or higher
For VMware Workstation 4.x: VMware Workstation 4.5.3 or higher
For VMware Player: VMware Player 1.0.1 or higher
For VMware ACE 1.x: VMware ACE 1.0.2 or higher
For VMware GSX Server 3.x: VMware GSX Server 3.2.1 or higher"
You can get the newest versions at the download page: www.vmware.com/download
In WS 5.5.1 NAT works fine.
rade
"Real men don't use backups, they post their stuff on a public ftp server and let the rest of the world make copies." - Linus Torvalds