Well I have, in my opinion, quite the nice CRT monitor, considering its age. It is a ViewSonic UltraBrite E70f+, bought brand new in 2003. It has been on daily, for maybe 9-10 hours a day, since I bought it. For a year I would shut the monitor off after use, but I started just leaving it in standby. I've always used 1024x768 32bit @ 85hz, and occasionally 1280@75hz.

Lately, I've noticed it takes a while to 'warm up' For instance, If I turn the computer off at night, and turn it all back in the next morning, my monitor takes 5-10 minutes to achieve its full brightness, colour balancing, and dimensions. It seems odd, It's always had a little 'warm up' time, but I don't recall anything near 5 minutes. However, once the monitor is 'warmed up' it will keep it's amazing quality for as long as I leave the monitor on. It makes no noise, generates no warmth, and it has been cleaned out thoroughly three times.

Any idea if my monitor might actually be dying? I sure hope not, do any other CRT users experience this?
~Bryan~

My father has a 10+ year old CRT that takes ages to warm up, starts out in a dark brownish state and gradually improves over 10-15 minutes.

Smaller CRTs are as cheap as chips now just check ebay or see if people are trying to give them away in your area.

sounds like perfectly normal aging of the phosphors and the guns to me