What a shock and how sad! I had noticed that Gabor had not posted on this forum for a while. I'd sometimes wondered why. Perhaps a shift in interests or a change in priorities. There can be many reasons why people cease to post on a particular forum. Perhaps they got married, are moving house, have a new job with lots of overtime. Or perhaps someone just leaves a site in a huff because he believes his professional integrity has been besmirched.
Whatever the reason, the last one that comes to mind is the possibility that the person has died.
I enjoyed the many stimulating discussions and arguments I had with Gabor. I sometimes emailed him RAW 5D files for him to analyze. He would occasionally advise me an image was overexposed (despite ACR's indication it wasn't) and ask for another image with a lower exposure.
He was very dedicated to the technical side of digital imaging and I'll miss him, and his input and opinions on such matters.
My condolences to Gabor's family. We share your grief.