I was using my mIRC 6.03 by hours now, without any problems. Then a friend ask me to see his script. She send me one zip file with the script folder.

When I open the mIRC of the script I see that's the mIRC what comes with the script is the version 6.1.

In 10 minutes my connection, on mIRC 6.03, get lost with the 10053 message.

I uninstall mIRC 6.1 again, remove the folder of the script and now I think my mIRC 6.03 is okay!