HI, I'm having problems opening a userform assigned to a button/rectangle on the worksheet. The error code is 'Run time error 380 - could not set the row source property - invalid property value'. When debugging the script, the yellow marker refers to the macro assigned to open the userform - the section highlighted is 'frmsales.show'. I've checked all the names, properties of the userform etc to see if they match up and they do. Any thoughts?