Right, i know this isn't a apple issue (I don't think) but many mac users are also phtoshop users, so i thought i would post my query here. Usually when using a hard brush, the circle which represents the bush side, and where it will paint, is the same size as the painting area. But at some point in the past (i have no idea when), my photoshop brushes have become larger than the painging area. I have tried every brush setting, precise, normal, and full size. Full size is just larger than normal, but normal is still larger than the area painted by a 100% opacity 100% hard brush. Im using CS5 on my mac. Tried painting with a 1px brush, the opposite happens. When painting on white, at 1px photoshop paints 3 or 4 px a grey colour, it takes a few clicks to get a white pixel (surrounded by a couple of grey ones), though this isn't an issue, and i think its something to do with smoothing. The issue becomes noticeable about 15px. If I set the brush to 0% hardness, the brush circle size decreases, and if i then click repeatedly, the maximum area the brush covers (at the 50% point) is where the circle shows (how it should work, i think). It only becomes very apparent when painting with a hard brush, for accurately judging where the brush will paint. This happens on every brush, both the default ones and any custom brushes you have. It happens at any dimension or angle. Tried changing most of the brush settings, turning off pen pressure, unplugging tablet, etc. Also reset brushes back to default. Still not working. Any advice or help please.