I noticed at one time that after running for a while, 6.31 seemed to be a bit sluggish, so after reading this thread I wanted to see if there was a difference between 6.3 and 6.31, even though I never use background images. On one of my slower machines, I ran 6.3 on four large and busy channels with lots of control codes for an hour. I then ran 6.31 on the same four channels for an hour and there was a very noticable difference in response, 6.31 being very sluggish to respond after the hour. The machine was rebooted before each test and both were clean with no background images. So this change effected display speed regardless of whether or not there is a background image.
