I had to open up my PC's case yesterday evening, as it was the only way to determine the exact model number of my DVD-ROM drive. I did this because a software check proved annoyingly inconclusive, and I needed to be 100% sure of the model number so I could download and apply the correct firmware update.
Why I am I telling you this? Well, upon opening my PC's case, I recoiled in horror - almost everything was covered in an unbelievable amount of dust! So today I bought a can of compressed air to blast away the dust, a dust cover, and a PC toolkit. My PC seems a lot happier now all that dust is gone!