Hello there, I know this is an old post. But I've had this same problem since day one using pro/e (check my post is you like: Premature Exit - The sum of all fears). We have spent lots of money in new Hardware, training, time in testing and more testing different values, parameters, solutions, options, windows configurations, video driver updates, etc... Some very fancy and some too odd. For over 4 years we have been dealing with this constant and annoying issue. Lately we’ve come up with an ultimate windows environment setting, using a Windows XP-64 system (in order to benefit the whole 16GB RAM and the 2 Quad Core Xeon processors), we installed only Pro/E on it, just that and a pdf viewer. Then we also installed a virtual box application tool. In this V-Box we installed a XP-32 system (creating a virtual hard driver, shared folders, etc). Into this V-Box we put every Windows application we regularly use, Autocad, Office, Lotus, Adobe Acrobat, All printers and plotters, etc). The idea was to completely isolate pro/e from any other application running at the same time. So when you check at the W-64 task manager, you only see 2 major applications running (other than Windows own processes), that is Pro/E and Virtual-Box. So far, our premature exit ratio has diminished greatly, from over 480 minutes lost per person at month, to eventually one or two exits at month. However, it’s a configuration hard to cope. Some people may not find it very comfortable; anyway using 2 monitors is a great advantage, as you put a Windows in each monitor. If anyone cares for further info about this, please let me know. Hope it helps you out
