>You're quite right - Last week I had the embarrassment of a user reporting this error after my app had been up and running for some time, but no one had ever accessed the seldom-used method with the SET STEP ON previously (or at least no one complained until now) :)
>
>And now in vfp6, the breakpoint is so simple to use, SET STEP ON can be discarded, I think...

Bruce,
I'd ROFL, except I can imagine you were kicking yourself across the office. ASSERTS don't affect compiled code, so you can use them with impunity. Leaving them in only annoys you when they're called unnecessarily.

Hope I can convert everything to VFP6 in the relatively near future.....