My scanner had previously been working fine; then one day, I went to scan and I got the "Sorry, no scanner found, scanner not initialized" message while opening the PrecisionScan Pro. I tried all of the suggestions offered at the HP website, and non of them worked, then sat on the phone w/ an HP tech for over an hour, and still not working. For some reason, I am missing the "hpie.reg" file, the "HPSCNCLI.REG" file, as well as the "HPSCNSVR.REG" file. My thinking is that this is why the scanner is no longer working, that these files somehow got purged. I can't find them anywhere, PLEASE help. I DID have McAffee anti-virus software on my computer, and the HP tech told me that is likely what purged those files. Took McAffe off, tried re-installing HP software and scanner, still nothing. I am really reaching the end of my rope here w/ this thing, and missing out on several deadlines. Thanks.