I keep getting this joke - what does it mean??

[waitingfornaru]

listsoplenty.com/blog/wp-content/uploads/2010/12/my_new_years_resolution_1280_x_1024_mousepad-.jpg

It's not really funny or very clever. It's a play on the word resolution, as in screen resolution (number of pixels on your monitor screen)

unless I'm missing something

Yes my nerdy nephew sent this one as well!

Why did I click on that, it's a DH grade pun