odd 30" display behavior

Hey folks,


I've got a question I want to run by you all:


I purchased an HP LP3065C 30" monitor in the fall of '08. I'm running it off of a early 2008 Macbook Pro via DVI. Overall I'm very happy with it (hundreds less than the Apple Cinema Display I was going to get!) and have had no issues. Lately however, something odd has been happening. I've noticed that there will be occasional short term burn-in of images on the monitor. If I go from having a webrowser open to my screen saver (which often has a light grey back ground), I will see faint images of the previous screen's content for roughtly 30 seconds to a minute. I am familiar with the concept of burn-in on LCD screens and am not all that alarmed that it is happening on mine. What I find very odd, however is the fact that in nearly 2 years of use, I have only begun to notice this phenomenon in the last 2 months. My usage patterns have not changed for this monitor at all, nor have cables, computers or connection ports over that time. The short term burn-in is noticeable enough that I'm almost certain I would have noticed it in the past. So what's going on here? Is it common for these 30" S-IPS screens to gradually exhibit more burn-in as they age? Assuming my observation that this phenomenon only began to happen in the last few months, is there anything that would explain it?

As I understand it, this monitor uses the same panel as the one in the ACD's from that time period, so owners of that monitor should feel free to respond as well.


Thanks in advance for your help!


Eric