ok i turned off my macbook yesterday around 3:30am woke up around 9am and took macbook to my work. i have PC at work so i didnt turned it on until 12pm. as my hand reach to the bag, i felt little hotness. when i grab my macbook and it was hot. i was thinking.....did i not turn off the machine? i DID turn it off for about 9 hrs. i was shocked. i was trying to turn it on it didnt work. i was stunned again. so i took out the battery and it worked. pee yew! but im kinda scary if this will happen again can anybody help????? little note for my macbook recently i upgrade my OS system from 10.4.11 to 10.5.6 also memory from 512mb to 2gb. and hard drive from 50gb to 250gb. i always check the temperature with Temperature Monitor. and after those upgrades my macbook was getting hotter than before. when i had 10.4.11 highest temp was around 69c right now highest temp that i saw was 80c. (especially when i do ichat video) and i have labtop cooling fan. i just installed the 10.5.6 so its pretty much empty no photoshop or anything just basic apps and couple of apps that i downloaded from internet (which is legal programs) help!!!!!