Is there a specific location where it "freezes"? Might it be an API call? What OS(s) are you running under?
Have you applied SP 5 to the development machine(s) and updated the workstation runtimes? Have you tried this on more than one machine?

Rick

>Hi Everybody!
>My VFP6 program runs properly with PII or PIII CPU, but now with P4 always froze. Has anybody any idea?
>András