Question: Maple 18 opens in low resolution. Why?

I recently bought Maple 18 and noticed it was very unpleasant to look at. I saw it was running in low resolution on my Macbook Pro Retina late 2014. Why can I not untick it? This is not acceptable for the price I paid, and the fact I can't get my money back.

Any help would be highly appreciated.

Please Wait...