You said you have uninstalled and reinstalled, but did you try installing a clean new d/l of mIRC from
www.mirc.com? i'm wondering if you got a bad download. HAve you gone into windows explorer and looked at your mirc.ini itself? If its there in the main mirc directory for 6.03 and looks ok, wouldnt hurt while you're there to check properties and be sure it isnt set to read only. Also be sure you have servers.ini, and NOT server.ini
As for a trojan, those are gotten by downloading/opening infected files/scripts or clicking on infected urls. Did 6.03 ever work for you?
Edward: dont ya just love that built in memory leak in 98se? *sigh* drives me nuts
