Techie told 'Bill Gates' Excel is rubbish – and the Microsoft boss had it fixed in 48 hours

I'm a Mac. I'm a PC. You're both annoying me

On Call  The Register knows that tech support is a vocation that induces frustration, which is why each Friday we offer a new edition of On Call – the reader-contributed column that details real-life support stories so you can at least enjoy misery in company.…