<HTML><FONT FACE=arial,helvetica><HTML><FONT COLOR="#000000" FACE="Geneva" FAMILY="SANSSERIF" SIZE="2">I've run into a strange problem. I need to get an extension for an older iMac DV we have. It is running OS 9.1 Apparently, I need to run an Extension for the CD/DVD player that is different from the one 9.1 installs. So, I've gone to Apple's web site and located the right Extension. I'm using a new iMac dual core running Tiger to get to the Internet. I can download the extension (which is about 3MB). I can then put the installing software on a USB device to transfer it to the old iMac running 9.1. But when the old iMac looks at the downloaded software, it doesn't recognize it as Apple software. It thinks it is some type of PC software and so it doesn't know what to do with it. The software is supposedly for an iMac DV running system 9.1. My new iMac doesn't recognize the software either but that is because I can't run anything but system 10 or above on it. Talk about backward or forward incompatibility. So I'm a bit stuck on why this is happening and what to do about it. Does system 10 change something about the downloaded software to make it incompatible with something running 9.1. I don't really want to go through the hassle of trying to get to the Internet with the old iMac. To big a pain because there doesn't seem to be a lot of Internet software that OS 9.1 can get to the Internet with. I must admit, I really like my new iMac (even though it is incompatible with all software before OS 10). After our experience with the old iMac I didn't want to jump back into a Mac. Now if AOL would simply update their software from the 2004 version to something a bit more current. This version lacks a lot of the nicer qualities the Windows version has.</FONT><FONT COLOR="#000000" FACE="Geneva" FAMILY="SANSSERIF" SIZE="2"></FONT><BR><BR><BR>**************************************<BR> See what's free at http://www.aol.com.</HTML>