If I should follow up on Rodas answer, I would suggest you to try adding “Effects” to your layer. This function comes with PS 5 and PS 6.
Right-click at your layer (in the layer-window) and a dropdown-menu appears.
Select “Effects” and a dialogbox appears.
The first effect that is sown in this dialog box, is “Drop Shadow”. Ensure that this Effect is turned off.
Chose “Outer glow” in the listbox and turn it on.
I use Effects almost every time I add some text to an image. With some Shadows and Outer glow, the text appears so no one misses my messages.
With Regards from KBBJ (-: