Issues with flvplayback component and domain names

I have fms running on linux with an apache webserver on the same machine and I'm have some issues regarding domain-names.

I have done the Walkthrough 2. Simple FLVPlayback 2.5 component which works nicely on my local machine using linux (and also on virtualized Windows). Locally it doesn't matter if I use my IP-adress or my domain-name, it all works fine. However, when I host the swf (on my local machine) and access it from another computer the video does not play. The player doesn't seem to load the flv. However looking at the fms-access-log it looks like a succesfull atempt, it connects, starts playing and transfers some data. I have a crossdomain-file in my apache root. I have tried using both domain names and IP-adresses accessing the swf and the flv. Also copying the swf to the other computer doesn't seem to help.

Another issue that might be the same problem(?) is that when I try loading an flv with another player (also hosted on my local machine) I can get it to work from that other computer (and locally), but only when giving the IP-adress. When using the domain-name it will not work and there is no activity in the access-log.

I have searched quite a bit without finding anything that solves this.

Any help is appreciated.

/Erik