Firewall exception

Hi all,

Just wondering if anyone can point me in the right direction for a fix...

I have MirandaIM Portable running from my USB stick, and it works perfectly apart from one aspect. Every time I eject the drive the Windows XP firewall exception for the miranda32.exe program disappears. Therefore every time I plug the drive in I'm asked whether I want to unblock the program or not, and it's getting quite annoying.

I've now downloaded Pidgin Portable, which works fine, and doesn't ask to unblock the program, but I was really wanting to stick with Miranda because it's much faster and smaller.

Anyone fancy helping me out?