and the computer hung badly enough that I had to do a power cycle reboot (just like a Windows box )
You have a bad impression of windows. Things got better many years ago. I doubt the above could happen now. My super stable windows box runs everything in the universe, never gets restarted from one month to the next, and is full of dodgy beta and alpha software that crashes when testing every day.
And its "free" too... if you know what I mean. More importantly almost everything just works. And most software that is specialist or small stuff is written to work on the most popular software... All my hobby speed controllers, chargers, transmitters, programmable gyros, sat nav updates, powerchair controllers etc all just work as intended.
Wheras your system is a big fight, nothing works, and is no more stable than mine is. Plus it looks like its a ten year out of date partly functional windows system... I tried linux a few times. Its retarded!
My server is linux, it gets bugs, infected, and attacked regularly. Right now its running slow, with high cpu load and the tech guys are trying to figure out why... I have other sites on a more user freindly windows server host, all running perfectly as usual.
Run a dodgy copy of Win7 64bit for a few weeks on your machine and you will see how difficult and backwards your linux is. Do a multi boot to test. I will send you a copy if you want.
Suggestions on how to get the P&G software to start up reliably?
Easy, get a proper operating system!