Hey, I've got my iMac G3 500 slot loader running 10.2.6, and I'm about to upgrade it to Panther. Is there anything I should know? I have 128MB of Apple-supplied RAM and 512MB of generic RAM - is there any chance that generic RAM might disappear? Can I stop it in any way? Remove it, install Panther, put it back in? I've got a SMB link to an XP machine, accessing a couple of shared folders. Will I still keep this? I just want to install it, because of the speed increase and the fixing of printing (my Lexmark X86 is a nightmare right now, only connects every third time at best). Speaking of speed increase, where can I get XBench? Test it pre- and post-10.3. EDIT: Found a copy of XBench 1.0 on my HD, my score pre-10.3 is 37.83. Any good?