Hi all, thanks for the replies. The issue can't be related to the MSJVM because a completely untouched and untweaked install with SP3 slipstreamed allows the image editor to work perfectly. The second I start taking out or changing any of the default settings, the image editor refuses to work again. I'm wondering if anyone more knowledgeable than I am could explain to me how a Java environment is created in Windows? Clearly, I'm removing some component or turning off some service that's crucial for the image editor to create its Java environment, but I have no idea what the component might be. My suspicions at this point are that the culprit is either Smart Cards, the Teletext... thingy, the IE files (but not the core files), or some kind of service. But like I said, I know very little about Java, so I could be on the totally wrong track. Then there is the curious symptom of the image editor always being able to be run after the initial install, and then never again after. Is there any Windows component that could behave this way?---run when a program is being installed, and then never run as soon as said program is closed? Very puzzled and a bit frustrated. I could just leave the OS untouched, but... what's the fun in that? Thanks for reading!