Everytime I attempt to run my form, it locks up after I enter something in the first field. There are only two fields on the form. Here is the valid method in my form on the first field. What is the deal here?

IF EMPTY(ThisForm.HtcNoProTxt.VALUE) OR ThisForm.HtcNoProTxt.VALUE = '000' OR ThisForm.HtcNoProTxt.VALUE = '00' OR ThisForm.HtcNoProTxt.VALUE = '0'
= MESSAGEBOX ("Invalid HTC ID! Please re-enter." , 0 + 64 + 0 , "Invalid HTC ID") = 0
*ThisForm.HtcNoProTxt.GOTFOCUS
ELSE
THIS.ENABLED = .F.
ThisForm.HtcNameProTxt.ENABLED = .T.
ThisForm.Btn_Reset.ENABLED = .T.
THISFORM.REFRESH()
ENDIF

Thanks, Jeff