Safari is pretty well-documented as a memory hog, and if you've had it running for quite a while, it may be using a couple of hundred megabytes of RAM by itself! Here's a short, recent message board thread about the topic: http://episteme.arstechnica.com/groupee/forums/a/tpc/f/8300945231/m/718009094731 The next time you feel your iBook acting sluggish, I would quit Safari (and maybe Mail, too) and then re-launch it, and see if that makes a difference. I would only upgrade to Tiger if its new features (Spotlight, Dashboard, Automator, new Mail interface, etc) are attractive to you, not because it might use less RAM and/or be more responsive. Honestly, I don't know if either of those claims are true or not. Hope this helps, Mike W. Roger Harris wrote: > Actually Tiger is worse at the problem you describe. This even happens > on a dual 1.2GHz g4 to a lesser degree. Try Thunderbird as a mail > client. This is not a RAM issue, I think it has more to do with > graphics load and the way smoke and mirrors have been employed to make > the OS "seem" to be faster or more responsive at some task? I try to > disable a lot of eye candy; And though I use Apple Mail it is a slug > compared to Thunderbird. I never leave Mail running longer than I need > it. Is mail set to do updates every few minutes? > > roger > On Aug 18, 2005, at 11:18 AM, M.Milligan wrote: > >> I have an iBook, 2 USB, 1.2GHz, with 750MB ram. I notice when I have >> Mail and Safari running, in OS X 10.3.8 the beach ball seems to >> become more obvious when ever the computer seems to be thinking or >> processing. >> >> Isn't 750MB RAM enough? Can I do something to not wait upwards of 5 >> or 10 seconds everytime I want to page down a page on a url? >> >> Post privately if you wish. Thanks for the time. >> >> Is it time to move up to Tiger? >> >> M. Millligan