i read in another thread that it happens, and when it happens to me, the unit wil be effectively dead so i want to postpone it as long as possible. i keep dimmer down to 10-40% and no vis on most of the time for this reason

Don't worry too much about phosphor burn.

In order to get burn on my Mark 1, I had to leave the same text screen up 100 percent of the time for weeks. And even after that, the burn is so faint as to be almost not noticeable. There are only one or two visuals where you can notice it.

If you are really concerned about it, you can do one of the following:

- Leave a visual up all the time or use Info:Transient.

- Use Mark Lord's new kernel with a timed screen blanker.

But there's no reason to keep the dimmer that low. Just use a visual instead.