Problems running SL on Mac OS X

I am new to Second Life and am unable to get the program to run on 3 of 4 Macs that I have tried it on. SL crashes immediately "The application Second Life quit unexpectedly". The Mac "Console" program says: "Unable to open filearguments.txt" followed by "Second Life crashed". I don't appear to have a file called "filearguments.txt" and am not sure that this is connected with the inability of Second Life to run.

In my case, Second Life won't run on a fairly new 20" Intel iMac G5 with a lot of memory, fast connection, and ATI Radeon X1600. Second Life crashes immediately on my main Mac, a titanium PowerBook G4, lots of memory, GeForce FX 5200. It also won't run on a non-Intel iMac G5 with a GeForce FX 5200. It will run on my daughter's older lampshade iMac G4, but I can't use that machine. SL Tech support has been very nice, but indicated that they were not that familiar with Macs, are were unable to help so far. In my most recent call, they indicated that they didn't think the problem was with the graphics cards or drivers. The SL program has been reinstalled. I am using the latest version. Any help that anyone can provide would be greatly appreciated. Thanks!

Well it's interesting that each Mac is different and has a different Video Card.
So that would assume that it's not a video or driver issue, as you are having the exact same problem on all three. I would start looking on what is common with all three. Do you have a Anti-Virus software installed, is there any services or Apps that's installed on all three. One thing you may want to try is to create another user. Make this user Admin and don't make any confirguration changes to it. Remove all Firewire, USB devices and dual monitors. Make it as plain vanilla as possible so basically it will be the OS and SL client. Then install a new copy of SL client. Put the SL client into it's own folder in the Application folder. Then try it.
I have a Powerbook G4 1.3Ghz, 2Giga Memory and it works fine with a couple of exceptions like it works best on the primary display. It does crash more if I have an iPod plugged in (haven't troubleshoot this on yet).

Gator,
Thanks for the suggestions. I have managed to now get Second Life running on both my Intel Mac and my PowerBook G4. I don't know exactly how or why I got it working. In a nutshell, what I did was remove all Second Life files, including those in Library>Application Support. I re-downloaded and re-installed SL. I changed my Display settings from millions of colors to Thousands. I turned Default Folder off, and made sure that SL was excluded from FruitMenu (a haxie that I sometimes use). I restarted, with SL in the Applications folder, but not in its own folder. Now things are working. I tried doing some of these things separately before. They didn't work last time, but now things are working, so I think we can end this Thread. Thanks again for your help, which was greatly appreciated.