Landale, I was just going to post about this myself. I have the same problem.
I use WindowsME. And this problem has just accured in the past couple days, only since I upgraded to Mirc 6.14. I was always able to recieve multiple files at the same time.
Now, I can only recieve the first one that is sent, and every one I try to get after it's started, is f'ed up. I get "Unable to connect", I am unable to recieve a DCC get file, or connect to an fserve.
I tried even to get 2 files through 2 different mircs running at the same time (both 6.14), and I can still only get one.
I hope someone out there can help us with this problem, it really make the experience bad. It needs to be addressed. Thank you in advance.