[DigiDiva]

Not sure if its the default settings on my CS3, but when trying to do a montage, I'm having megga issues from the start. I have opened both a new (blank) layer (international paper size A4) then opened the image I want to use for the montage. I click on the image, select move, and drag the image to the blank layer. Sometimes (on good days) it works. Other times, the image springs back to where I dragged it from and I cant place it onto the blank layer. What am I doing wrong? Is it my settings? I'm fairly new to layers and becoming disheartened.