Scott,

Are you saying that you only get this error when you click OK on the form that tells you the form cannot be instantiated more than once at a time?

Also, did you remove your main toolbar? I seem to remember you mentioning this in a previous thread? Is this the same project?

---J

>Greetings!
>
>I have a cBizObjForm where I set the allowmulitpleinstances to FALSE to keep the user from shooting themselves in the foot. The framework catches the attempt to start subsequent instances, however, I receive this error when I click on the OK button of the message box:
>
>Function argument value, type or count is invalid
>Method: Scan
>Object: MyApp.oforms
>
>Here's the code that is happens on (the 'llFound =' line):
>FOR lnRow = lnStart TO lnEnd STEP tnDirection
>IF llCompareProperty
>*---------------------------------------------------
>*-- Look for either class name, object name, or both
>*---------------------------------------------------
>IF EMPTY(tcProperty) OR tcProperty = "CLASS"
>----->>>>>>>>> llFound = UPPER(this.aChildren[lnRow, CHILD_CLASS]) == tuParm1
>ENDIF
>
>I've tried to trap the error and VFP 8 just throws up all over me and then throws me out to boot! VFP terminates!
>
>Not sure what is causing this, but I just did a quick test for ALL the forms in this app that are set this way and I get the same error.
>
>Any ideas?