Bunsen- I have the iMac raised using the plastic strip at the bottom of the case. I also have an office cooling fan in my room, in addition to a return to allow air to come in (plus a window, etc., but it's too damn cold to keep it open now).
The iMac does not overheat per se (like a Plus without a cooling fan); it just develops these cracks. My concern is that if these cracks continue to expand, the top housing may collapse, destroying not only the CRT, and the entire case, but creating a big mess.
I should note that I do keep the iMac on sleep mode when I am not using it, as I do not want to wear out the power supply. There is still some heat being generated when it is in hibernation.
From what I have read, even outside of the 68k forums, this was a common cosmetic problem with the first-gen iMacs, and some of the Apple CRT studio monitors (or Design monitors, whatever they were called) with the translucent case.
The iMac does not overheat per se (like a Plus without a cooling fan); it just develops these cracks. My concern is that if these cracks continue to expand, the top housing may collapse, destroying not only the CRT, and the entire case, but creating a big mess.
I should note that I do keep the iMac on sleep mode when I am not using it, as I do not want to wear out the power supply. There is still some heat being generated when it is in hibernation.
From what I have read, even outside of the 68k forums, this was a common cosmetic problem with the first-gen iMacs, and some of the Apple CRT studio monitors (or Design monitors, whatever they were called) with the translucent case.