Incredibly new guy (to photoshop and map making). I'm desperately trying to make it work... but I just cannot do it. I get to Stage 3 - the creation of land. I start creating the various layers then we get to "paint white" to create different elevations. No matter WHAT I do it doesn't change.

Ever.

Ever.

Same for the technique of making mountains. I can't seem to ever create any kind of elevation. If someone has some idea of what's going wrong, can you please, please, help me.