Dirty PCs: How much filth can you take?

..but here's what happens when you own a Dell but not a vacuum cleaner:

According to Pete MacDonald, that's the front access to a USB panel, not that you'd know it.

This too was once a computer, Stateside reader Ian Keyes believes:

Fellow American J C Edmond, who owns a computer repair shop, provides evidence of why one of his customers' kit kept overheating: