checkbox selection

[novice1]

I have three checkboxes in a userform. If none of the checkboxes are not checked, I would like a msgbox to appear stating that "At least one checkbox must be checked." Can someone assist. Thank you.

 

[repairman615]

Maybe like:

<font face=Courier New>    <SPAN style="color:#00007F">If</SPAN> checkbox1 = <SPAN style="color:#00007F">False</SPAN> And checkbox2 = <SPAN style="color:#00007F">False</SPAN> And checkbox3 = <SPAN style="color:#00007F">False</SPAN> <SPAN style="color:#00007F">Then</SPAN><br>        MsgBox "No selected checkboxes."<br>    <SPAN style="color:#00007F">End</SPAN> <SPAN style="color:#00007F">If</SPAN></FONT>