Mark is entirely correct on this one.. I must say that, since I own 7 AS/400's, not ever getting the OS with them tends to make me a little frustrated! I do have an OS/400 upgrade tape for version 2 something to version 2 something else, but since I don't have the version you apply the upgrade to... I also have 2 MULIC tapes (Model Unique Licensed Internal Code), which I know are required for the OS, and are processor-specific. Note that I am speaking only for CISC machines. Oddly, one of the things that was with the machines was an IBM license document, I don't know what it was for exactly, but it essentially says you can't sell the program but you can give it to someone, so long as you destroy/give them all your copies, yadda yadda yadda. And technically speaking, I wasn't entirely serious about trading those 3 for any of those machines, I'd rather offer them to this list.. The worst thing about the Altair, etc. for me at least, would be that it would come down to a debate between the fact that I need the money and the fact that I'd rather people who are going to appreciate the machines have them, and naturally, it's quite possible that cash could be maximized by selling to someone who would minimize the use, etc. of the machine.. But if anyone ever sees any AS/400 software show up at auctions, regardless of model, BUY IT and I will gladly reimburse you.. I'd also be especially happy if someone found IBM 4300 software for me, especially VM/SP release 5 or 6, or MVS (OS/VS2), or AIX/370.. Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com