How long have you been looking at the monitor? I have found recently that if I spend too much time looking at the monitor, reading, knitting, or really anything that requires somewhat close looking (wow I hope you can figure out what I meant because I can't figure out how to word it LOL), everything goes blurry and until I rest my eyes for a while, it just stays blurry. I don't get the wavy thing, though. If it gets better after you rest your eyes (just rest and keep them closed), then it's probably eye strain.