I got kicked from an IRC channel. I have Windows XP and now if I'm trying to get into this specific channel, I get inside but I get immediately kicked out.

I can come in again, and again get kicked out. It seems this is done automatically.

Now I have also installed, on another hard drive in the same computer Windows 7. On Windows7 I can get into this same channel and never kicked out! It's the same computer, but different operating system(separate Hard Drives).

How can it be? Is the KICK command bias towards the operating system I got KICKed in? Please explain to me how this thing is happening.

PS:
I forgot to mention that it doesn't matter if i change my IP or my nickname, I continue to kicked out from this channel. Again, in windows 7 I can get in without a problem.

another thing that is good to mention is that i got kicked out when i was using windows XP, and not windows 7.
i think that it could happened also with windows 2000 and vista, so i dont bother the OS itself, but why it's acting differently with a different OS?