I emailed GMAC with my complaints. Ridiculous that I paid $250 bucks and I had to use crappy used markers that didn't work. Essays went well. Verbal went well. Didn't use the markers and erasable boards for either of those (I tried, but I gave up). Quant. was a major pain without the ability to work out problems. I almost walked out, but I figured I should finish to get the sit down experience. I ended up cancelling my scores cuz I knew my timing was thrown off a bit...in the words of arnold...ill be back.