Regenerating the assembly has been working for me here. Please send me you assembly if it keeps giving you the Mass Properties mesasge after regenerating and saving ( support@ironcad.com or ftp://ftp.ironcad.com/upload/ ).
This should a one time event per file, adding the new Mass Property data to each part.
If you use external links, regenerate all the parts before saving to ensure they will all be updated and the message won't keep popping up.
They would better off with any of the Nvidia Quadro FX or ATI FireGL cards since they are designed for CAD. The cards listed above are designed mainly for gaming.
The LCD Flat Panel I'm using runs at 75Hz refresh rate, maybe that's a big difference because I've noticed a big drop in eye-strain compared to my old CRT.
You can upload the file to ftp://ftp.ironcad.com/upload/
Send an email to support@ironcad.com to let me know that file is finished uploading.
We can then attempt to recover the file, this is successful about 50% of the time.
Sorry for the inconvenience.
NOTE: As mentioned in the PU1 install, files saved in PU1 cannot be opened in 9.0 "plain". Scene files could be saved in ACIS files and imported back to 9.0 but the .ics files could not.