Safari 3.0.4 on OS 10.5.1 not crashing but browser windows DISAPPEAR! Help!

Question

I know there is a thread in the beta forum with a generic title "Safari acting strange" but I figured a more specific thread title might get more attention from those experiencing the same anomalies.
Here is my problem:
I'm using Safari 3.0.4 that came with the Leopard 10.5 disk I installed on my laptop. Safari was working fine for a good couple weeks and then suddenly it began acting strange indeed.
Now after an undetermined amount of time when I have a Safari browser window(s)/tab(s) open it will suddenly disappear off my screen without provocation (meaning I don't have to perform any action to do this. I can be sitting there not touching the laptop or typing anything; it will just disappear as if some unseen person with a remote control hits the Let's-mess-with-this-guy's-computer button). At first glance it seems that Safari has crashed.
However when I look to see what happened or perhaps relaunch I see that Safari is still up and running. The menu bars all work. It seems to be in perfect working order. Only problem is the browser windows have disappeared and nothing I do will bring them back. I can try to create new browser windows and Safar thinks it is creating them because I can check in Windows menu and see the fruits of my efforts stacking up more and more as I add new windows and tabs in an attempt to get the browser windows back. However where these windows live is a mystery to me. When I try to quit Safari I get an Alert message asking me if I really want to close the windows with the multiple tabs in them (further supporting the theory that Safari still thinks windows are open and seeable by me)
When I DO quit Safari and relaunch it, it remains in the same state. No browser window is seen yet looking in the Windows menu I can see that a new browser window is present. The only way to use my Safari again is to reboot my computer. Of course this fixes the problem for maybe 5 minutes until the browser windows disappear again. And that's when I switch to Firefox.
I've repaired permissions. I've checked for any Input Managers folder for culprits but seeing as this is a fairly new laptop and that I just did an Archive and Install of Leopard with a fresh Safari in toe I have not installed any 3rd party applications so no Input Managers folder exists anywhere on my laptop.
I have the standard Safari Plug-Ins that come with Quicktime.
I have Spaces turned off. I am not using dual monitors so the browser windows are not being shot off to a second screen somewhere.
I see nothing in the crashlog because I actually don't think Safari is treating this behavior as a crash. It's not quitting unexpectedly or anything.
So I am at a total loss. Any ideas?

Answer 1

I had this problem as well.
First: In Safari go into preferences and select the "security" tab. Uncheck "Enable Plug-ins"
This fixed a lot of bugs for me !
Second: If that worked than you just need to go to Hard Drive/Library/Internet Plug-Ins
There should be a folder there that is called "Disabled Plug-Ins" I just put all of the plug-ins in that folder, went back and rechecked " Enable Plug-Ins" in Safari preferences, and then one by one added plug-ins back out of the disabled folder while reloading a web page that caused problems before. After some trial & error I think I have a setup that works for now. Hope this helps!! Also as of now I have installed all software updates. My mac has been doing this for a while. Logging out & back in reset safari back to where it was useable.
I have not had problems with any other programs.