Customer:
"Your sound card is defective and I want a new one."
Tech Support:
"What seems to be the problem?"
Customer:
"The balance is backwards. The left channel is coming out of the right speaker and the right channel is coming out the left. It's defective. Tech Support:"
You can solve the problem by moving the left speaker the right side of the machine and vice versa.
" Customer: (sputter) (click) Tech Support: (snicker)