This message usally is generated when there is trouble caused by a graphics issue.
Is Pro/E currently functioning?
Has it been prematurally exiting or locking up?
to troubleshoot, delete the std.err file, set your graphics to win32_gdi and see if the issue is resolved. Afterwards you can check to see if a new std.err is generated.
If setting your graphics to win32_gdi resolves the issue then you know the issue was opengl related. At this point you can try to find a more suitable driver for your graphics card and/or try tweaking diffrent graphics settings and then try running again in opengl. Depending on the card you are using you may have no choice but to run in win32_gdi mode.
Post your results afterwards if you still have trouble and I will attempt to assist you futher.