Remote desktop on two servers at the same LAN

I have one PIX 501 and two windows servers. On the outside on the PIX it has an public IP. On the inside it has the IP 192.168.1.1 and this is the gateway for my two servers, placed on: 192.168.1.2 & 192.168.1.3.

I want to be able to access the two servers with remote desktop. It works fine for one of them (192.168.1.2).

I have this config: access-list allow_inbound permit tcp host 2xx.xx.42.x interface outside eq 3389 static (inside,outside) tcp interface 3389 192.168.1.2 3389 netmask

Typing my public IP I can access 192.168.1.2.

But, I also want to be able to connect 192.168.1.3 from my public IP. I have made this config: access-list allow_inbound permit tcp host 2xx.xx.42.x interface outside eq 3390 static (inside,outside) tcp interface 3390 192.168.1.2 3389 netmask

Typing :3390 does not work :-( I was hoping to access the 192.168.1.3...

I know remote desktop works on 192.168.1.3... it must have something to do with the PIX, but what?

Best Regards Martin