Hi need some advice please can someone tell me how to clean my fan and the dust from my Dell inspron 1525 as its running quite warm. Also is it pos to upgrade the CPU which at the mo is a Intel Core Duo T5550 1.83GHz also has 2038MB of ram is it worth upgrading the CPU? for a better one etc. My wife also has a Dell 1300 would it be worth upgrading the CPU on that as well? thanks for any help in advance. PS i am of to Malaysia next week so will like to get the dust clear from my laptop so it runs cooler as it gets rather warm out there.