Type Tool: Just can't seem to get it going! CS2

PS CS2.

I can't seem to see why I can't see my text.

I click on the type tool and when I click on the image a small black square appears. I thought it should turn into an I beam (is that what it's called?). If I move the cursor off the black sq it turns into the same as you get with the move tool (an arrow and a cross). If I want to, I can move the black sq around the page. If I type I can't see it but I think it's there because I can spell check it.

I must have clicked something I should't but I just can't seem to get it going. I have searched PS help and the forum but it's proving too vague a problem to narrow down the help.

Thanks

Martin (feeling stupid)

2 things to check.

make sure your text color isn't the same color as your background.

make sure your image resolution isn't some outragous number like 1ppi (image> image size)

Many thanks Dave...

Easy, when you know how

Martin

no problem!