OS 10.6.8, Safari 5.1.7 (a reinstall), Office 2011
This started while troubleshooting some problems with Outlook 2011 (designating safe outgoing (to contacts, whitelist addys, or randomly after sev messages in a thread) into unsendable for "spam characteristics." Safari itself has had various issues for a year or more. Just seems to be a bit buggy.
So, Safari will open and the menu bar appear, but no Safari windows, prefs window, or About window (no title bars, nothing). Opening a new window via Command-N or from menu produces nothing on screen, but the window will appear in the list of open windows in the dropdown Window menu. Ditto for a bookmarked or History item--all show up in Windows menu dropdown as they would normally, but all are simply missing on screen. Help, Downloads, and Activity windows open and are visible.The only extensions I have installed are AdBlock and a Flash blocker (though window listing extensions is invisible, too, so can't double check). Definitely no toolbar except the usual Google (which I think comes with, not an add-on, right?).
-Sev HD reboots, sev Safari relaunches, both from dock and from Apps window
-Ran Disk First Aid from CD, repaired a zillion permissions, but no HD problems found.
-Ran BitDefender for 12 hours before giving up--all its hits were files from an Entourage archive that is stored on my backup drive by Time Machine, and all said they could not be quarantined or deleted.
-Ran ClamXav, which reviews said was more compatible with Snow Leopard. Many hits, all but a handful being Outlook messages. Two notes: I was only offered my own user to scan in ClamXav; couldn't scan the whole HD. And, the hits from the two anti-malware apps were altogether different. Makes one wonder...
[As a general note: I'm pretty careful about hovering to check links in emails, and err on the side of caution. I do download stuff from the Web from time to time. Scanning for viruses/malware is fairly new to me (on Macs since '84); not savvy about behaviors, etc.]
-Reinstalled new download of Safari followed by reboot of HD (since I couldn't see the About window when this first began, I can't be certain what Safari version I was running, except to note that everything I have is set for auto update).
I tested all the suggestions in this thread: https://discussions.apple.com/message/13047679#13047679 . No change.
I think that's it. Your help very much appreciated. It's a nightmare to not trust a Mac!