Well, I have slogged through upgrading my PB2400/G3 from OS 8.1 to 8.6. No, the iMac DV installer CD did not work, it just said "No" and quit. After copying the system from the iMac, and sorting through all the control panels, strips, extensions, fonts and prefs, it's about 98% working - haven't tested all apps yet. The most disturbing thing was that my Dayna Communicard (10BT Ethernet PCMCIA card) seems to not work with the two Open Transport 2.5.1 extensions that seemed to ship with OS 8.6: OpenTransport 2.5.1 open transport library Open Transport ASLM Modules 2.5.1 library To get it to work, I removed these extensions and replaced them with the old Open Transport 1.3.1 files from OS 8.1: Open Tpt AppleTalk Library 541,754 bytes 1.3.1 libr OMGR Open Tpt Internet Library 485,155 bytes 1.3.1 libr OMGR Open Transport Library 587,352 bytes 1.3.1 libr OMGR OpenTptAppleTalkLib 59,455 bytes 1.3.1 shlb otan OpenTptInternetLib 281,210 bytes 1.3.1 shlb otan OpenTransportLib 586,133 bytes 1.3.1 shlb otan The Dayna Communicard is no longer made or supported. I have version 2.3.1 of their software, which is the latest and last. Is anyone out there using a Communicard with OS 8.6? I have the non-modem version (Ethernet LAN only, no modem phone line). Also, does anyone know if I'm going to have any other problems with this old Open Transport under 8.6? If not, I'll let you know if I do! Jerry Krinock San Jose, CA Claris Em@iler 2.3 for Macintosh ---------- Duo/2400 List, The friendliest place on the Net! A listserv for users and fans of Mac subportables. FAQ at <http://www.themacintoshguy.com/lists/DuoListFAQ.shtml> Be sure to visit Mac2400! <http://www.sineware.com/mac2400> To unsubscribe, E-mail to: <[EMAIL PROTECTED]> To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]> Need help from a real person? Try. <[EMAIL PROTECTED]> ---------- Dr. Bott | 10/100 Ethernet for your 2400 is finally here! MPC-100 | <http://www.drbott.com/prod/mpc100.html> NineWire | If they are cool enough to host this list... Digital Solutions | ...you should check them out! http://www.NineWire.com/ Midwest Mac Parts ][ <http://www.midwestmac.com> After-market parts for Macs. ][ 888-356-1104 ][ MacResQ Specials: LaCie SCSI CDR From $99! PowerBook 3400/200 Only $879! Norton AntiVirus 6 Only $19! We Stock PARTS! <http://www.macresq.com>