Linda, The fan on my 500Mhz Titanium recently started coming on frequently and I traced it down to MS Word which was taking 50% CPU. A few days before that I had applied the recent iTunes and Quicktime update and also the recent 11.3.6 Office 2004 update which possibly caused this problem. When I quit Word, the fan stops coming on and the CPU drops 50%. You may have an application that is driving the CPU hard. You can use Activity Monitor or start Terminal and issue "top" to see if you have any CPU hogs. Bob Fowles At 6:32 PM -0700 7/19/07, Linda wrote: >My titanium 800mhz laptop seems to last me working online about 5-8 >min. before the fan comes on sounding like a B-52 bomber and sucking >my battery dry....and then half the time not shutting off. I have >the laptop propped up for venting underneath it at about a 10 >degree angle....this seems to be getting worse....and I'm needing to >replace my battery too...the charge doesn't last long at >all!.....Any ideas?....I replaced the harddrive with the superdrive >and maxed out the memory, but that's about it. Thanks--Linda > >