Has anyone ever encountered the following warnings? I typically get the three in succession either when I'm performing simulations or saving and opening the project. I'm running version 3-63 on a 64 bit machine. I had not encountered any errors before when I had a 32 bit machine, so I wonder if they are not entirely compatible. I can click okay and it still seems to run, but occasionally I get an error that says "Invalid argument encountered" and then the program just stops in the middle of whatever it was doing.

[cid:image001.png at 01CA9A70.DB4ECE30]

[cid:image002.png at 01CA9A70.DB4ECE30]

[cid:image003.png at 01CA9A70.DB4ECE30]

Any help or suggestions would be greatly appreciated.

Thanks,

SUSAN TRZOS, LEED(r) AP