I have just installed ZoneAlarm Internet Security Suite paid version.
After a few hours the machine hangs with a black screen and is totally unresponsive. The only way to get it back is a restart via the power button

This is most annoying as I leave the machine unattended doing downloads.

Last night I ran with ZA off and there was no hang..............
dangerous I know, but what else can I do?

I used to run ZA Extreme without any problems.
I wsih I had not changed over.