Hi,

I am experiencing exactly the same problem using a MACBOOK with 10.5.7 I upgraded JAVA; no fix. My previous version 4.xx.xx stopped working about 3 months ago after the last APPLE upgrade. It would open but not find any files that I was searching for. This week I upgraded and even unistalled and reinstalled the older 4.xx.xx version and had exactly the same results. Now I am back with the latest version and it will not launch. I get the split second flash and then nothing.

Bill