Back to my Mac issue

Hello all, I have a slight issue that is troubling me...

After installing iLife '09, I have not been able to get Back to my mac to work on my desktop computer (an iMac running 10.5.7, 3.06 GHz Intel Core 2 Duo). I am able to use my laptop (a black Macbook, also running the same version of the OS) to connect to my work desktop without a problem.

However, I find that not only can i not connect to the home iMac, I also can't use it to connect to my work computer (even though my laptop can), so there is obviously some issue with my home iMac, but darned if I know what it is.

Has anyone had their BtmM functionality disabled after installing iLife '09? All my screen sharing permissions are set correctly, so I don't know what to try next.

The console message I get is:

Jun 12 16:35:08 Zoidberg Firewall[41]: 11400 Deny TCP 10.0.1.3:49171 10.0.1.199:5900 in via en1

What is causing it to deny it? Grr.

 

No one else is having issues with Back to my Mac, I take it?