Rightclick to select layer?

Hello all,

I am having a strange issue with PS CS3 and I am by far an expert so maybe it is just a setting.

I use quite often the right click in the window to select a layer, which works great. But sometimes this feature stops working as the menu does not come up with the layers below the mouse. First I thought it was the mouse but rightclicking in any other part of the screen (such as the border around the document or the panels works fine.

Is this a setting I need to make or is it a different problem such as lack of memory or what?

Anybody any ideas?

Many thanks,

wm

Hold down the CTRL key while right clicking.