Win XP and Norton Antivirus 2002 hangs

Recently removed my antique motherboard (PII-233 running Win98) and replaced it with just an “old” motherboard (Duron 800MHZ running Win XP). Used old drive “as is” as slave drive, and installed new master drive with fresh copy of Win XP. SP2 installed. Machine runs fine—except using Norton AntiVirus 2002, machine will randomly freeze when doing a full scan. Not on any particular file. Just random. Have to do a hardware reset of machine. ALT/CTL/DEL does nothing. Completely frozen. Worked fine with Win98 and with other XP machines. What do I do?