What's mildly irritating you today?

[ZenGum]

Mildly irritating me today is: computer speakers.

I bought some on Thursday.
The shop clerk picked up a box off the wrong pile - I wanted the sub-woofer + five woofer/tweeter set - he gave me sub-woofer + two speaker set.

Today I went back and changed them over, paid a few dollars extra. All good.

I got home and read the instructions. Despite the clerk's assurances that it would "plug straight in" to my computer, there is a catch. My machine has a two channel sound card. I can connect the system, but the back two speakers (for surround sound) will not function at all. No sound.

Turns out that first set I had would have been more suitable.

I am considering whether to go back to the store again and change them back. I don't think so - I'll just leave the other two in the cupboard and maybe someday I will upgrade to a better computer which will be able to use all the speakers.

Any suggestions from all the techie types here?