• I see no plot!
  You may be plotting black-on-black, see manual entry for colours on Displaying Data page.

• I get a wrong number value after a normalization.
  This error occurs when you divide by a too small number (or zero). This can occurs also by dividing non-floating spectra.

• When I press print I only get a PS file.
  The LAMP default printer must be set in Begood, see manual entry for printing on Displaying Data page.

• LAMP is stuck (no response)
  Certain operations on large arrays can take a long time, such as contour plots and the sqw command, but if you are sure that LAMP has crashed then see Exiting LAMP on Manipulating Workspaces page.

mail queries about LAMP or The LAMP Book to lamp@ill.fr