Find Replace Common Controls

[sma]

I am attempting to utilise the common control FindReplace, the program compiles and runs under debug in visual C++ version 6.0, SP5 under NT4, and Windows 2000. Here is my problem, when it is compiled in release mode, the executable crashes with the error message can't access memory xxxxxx. I understand that this infers that an attempt has been made to access an invalid memory location (previously allocated) however the control is displayed correctly, the first activation of any of the available buttons works fine yet on the second activation the program crashes.

Has anyone encountered this problem and if so what is the solution if any????