Well, Vue 4 Pro was made for approximately OS X 10.2 if not earlier. Now we have 10.6, a complete new operating system. I don't know what OS version you use, but if it is the actual version I think it is not a big surprise that there are problems.

However, my advice is that you download a PLE version of Vue 8 and try it out. But check carefully the display options of Vue (and start with low settings ideally), they wrong are the main reason for crashes.

One day your ship comes in - but you're at the airport.