Help with reoccuring problem

This has been killing me for days and I can't trouble shoot it. When I go to do pretty much any function, including paint, erase, draw, etc I have this problem. First I select the region I want to do work in and then I go to click a function, such as to use the paint brush to brush white over a small circular region.

What happens is that the brush paints an area outside of my selection. I am painting pixels outside of the selection. Sometimes the entire region of the image gets painted, erased, etc. and there is usually a gradation.

In other words, if I wanted to select the entire picture and then chamfer the selection region to be able to white out the corners (to make the corners appear rounded) I cannot do this, because its bleeding the white into the region I wish to remain unchanged. I know that's alot of words but I know someone will make sense of this. I have tried everything. Any suggestions? :confused:

Thanks for your time,
Parker

www.ParkerSnyder.com

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