Serial Number Stopped Working

you should understand WHY this happens. Please read this.
When this happens, you can just email me and say that you need your activations reset.
If you've already emailed me, and i sent you to this page, then I've already reset your activations, you should be good to go now, give it a try.
Remember: Copy and Paste your serial number if you need to, please do NOT type it. the Letter "Oh"s and the Zeroes are not easy to distinguish.
In the future: If you want to move kJams to a new computer (and stop using it on the old computer), remember to Deactivate first!

More info