Today I finally used a can of air to clean out far too much collected dust in my computer. Now the reason I did this is because it was running too hot, and I know it is a good idea to dust out your computer's innards on a regular basis. Thing is.. it also seems faster now. I did some hunting around and everything I read suggested that using a can of air should not directly make a difference to actual speed.... Anybody know anything about this? Is it just my imagination that the comp is running faster?