Are you trying to draw on a normal layer? If so, just check that you're not painting in the same color as the background, that the opacity (at the top) is not zero, that you have the 'blending mode' on the layer set to 'normal'.
There could be a lot of things. Here's a tip. If you want to show us a screenshot of what you've done, hit the Print Screen button at the top (assuming Windows...). This puts a picture of the screen on your clipboard which you can then use to help demonstrate your problem (e.g paste it into photoshop, paint etc and output then upload a cropped copy).
You'll have a lot of fun with Photoshop, but you're going to have to be willing to persist. You can't stop because one thing goes wrong, you have to keep fiddling.
Let us know how you get on. |