That monitor has a rating of 300cd/m2 which should be more than enough "brightness" without burning your eyes out. Maybe you need to do some calibration. My Dell2007WFP has the same rating and I can't push it past 200cd/m2 without smoke emanating from my corneas.
Here's a good read on calibrating the 226BW A & S panels. My guess is your 216bw is closer to the A panel tested in that review. I believe there is downloadable profiles too in that review. You might try those?
You may also want to Google monitor
calibration and try some online techniques which usually means you eyeing the tests so it won't be perfect but you might get an improvement.
A pretty decent way to get accurate colour out of your panel would be to use a
Spyder or similar type of monitor calibration device.
Hope this helps? -cheers