Question when install windows xp

[hackle]

when I install Windows xp 2600, I have a question here:

My os is windos 2000 professional, when I run setup, it shows:NTVDM CPU encounter an invalid instruction. CS:odbo IP: 0105 OP:62 fc 75 a5 b5 choose "close" to terminate program. when I want install it in dos mode. winnt.exe shows the program is too big .

How can I install a new OS? my old one have some question

[ZsasZ]

The few people I've talked to who upgraded from another OS to XP have all had some type of problem... If at all possible, I suggest using a bootable CD and doing a clean install....