Adobe PHOTOSHOP 5.0 User Manual page 375

You might also be attempting to paint or fill a
layer that has the Preserve Transparency option
selected. In this case, painting is limited to the
areas of the layer that contain pixels. Deselect this
option in the Layers palette to edit anywhere on
the layer.
The pointer disappears (Mac OS only).
Try either disabling or enabling the Direct Cursors
extension in the Extensions folder. To turn off the
extension, first create a new folder outside of the
Photoshop folder; then drag the Direct Cursors
extension out of the Extensions folder (located in
the Plug-Ins folder) and into the new folder.
Only 16 pixels are available for the brush size
(Mac OS only).
Disabling the Direct Cursors extension restricts
the number of pixels available for the brush size.
To fix this problem, turn on the Direct Cursors
extension by placing it in the Extensions folder
within the Plug-Ins folder.
Rectangular space appears around Photoshop
images placed in other applications.
All exported Photoshop images are bitmaps on a
rectangular grid of pixels. Therefore, by default,
white backgrounds and transparent areas are
visible when placed in other programs. To correct
this problem, you need to create a clipping path for
the image and save it in EPS or TIFF with the
proper preview option. For more information, see
"Using clipping paths" on page 327.
Some applications, such as Microsoft Word, also
accept the PNG format. To save a file in PNG
format with transparent areas, include an alpha
channel that specifies the transparency.
ADOBE PHOTOSHOP 5.0 367
User Guide