Adrian Aichner <aichner(a)ecf.teradyne.com&gt; writes: Hi Jareth, me too! :-) I can reproduce it by starting XEmacs and then going to the default Page of W3 (William Perry's page in Indiana). There is a JPEG which causes this. BTW: this is also solaris2.6 I put a breakpoint at object-x.c:199 and had a look at color_def and cells[nearest] : *color_def = { pixel = 55U red = 55512U green = 53713U blue = 50886U flags = '\007' pad = 'û' } cells[20] = { pixel = 20U red = 55512U green = 53713U blue = 50886U flags = '\007' pad = ')' } I have no idea why XAllocColor() fails, but it DOES happen :-) If you'd like any further info, drop me a mail. Gunnar name of display: :0.0 version number: 11.0 vendor string: Sun Microsystems, Inc. vendor release number: 3600 maximum request size: 262140 bytes motion buffer size: 256 bitmap unit, bit order, padding: 32, MSBFirst, 32 image byte order: MSBFirst number of supported pixmap formats: 2 supported pixmap formats: depth 1, bits_per_pixel 1, scanline_pad 32 depth 8, bits_per_pixel 8, scanline_pad 32 keycode range: minimum 8, maximum 132 focus: window 0x5400030, revert to Parent number of extensions: 21 AccessX Adobe-DPS-Extension DOUBLE-BUFFER DPSExtension MIT-SCREEN-SAVER MIT-SHM MIT-SUNDRY-NONSTANDARD Multi-Buffering SHAPE SUN_ALLPLANES SUN_DGA SUN_OVL SUN_SME SYNC SolarisIA X3D-PEX XC-MISC XIE XInputDeviceEvents XInputExtension XTEST default screen number: 0 number of screens: 1 screen #0: dimensions: 1152x900 pixels (325x254 millimeters) resolution: 90x90 dots per inch depths (2): 1, 8 root window id: 0x2a depth of root window: 8 planes number of colormaps: minimum 1, maximum 1 default colormap: 0x21 default number of colormap cells: 256 preallocated pixels: black 1, white 0 options: backing-store YES, save-unders YES largest cursor: unlimited current input event mask: 0x78003f KeyPressMask KeyReleaseMask ButtonPressMask ButtonReleaseMask EnterWindowMask LeaveWindowMask SubstructureNotifyMask SubstructureRedirectMask FocusChangeMask PropertyChangeMask number of visuals: 6 default visual id: 0x22 visual: visual id: 0x22 class: PseudoColor depth: 8 planes available colormap entries: 256 red, green, blue masks: 0x0, 0x0, 0x0 significant bits in color specification: 8 bits visual: visual id: 0x23 class: DirectColor depth: 8 planes available colormap entries: 8 per subfield red, green, blue masks: 0x7, 0x38, 0xc0 significant bits in color specification: 8 bits visual: visual id: 0x24 class: GrayScale depth: 8 planes available colormap entries: 256 red, green, blue masks: 0x0, 0x0, 0x0 significant bits in color specification: 8 bits visual: visual id: 0x25 class: StaticColor depth: 8 planes available colormap entries: 256 red, green, blue masks: 0x7, 0x38, 0xc0 significant bits in color specification: 8 bits visual: visual id: 0x26 class: TrueColor depth: 8 planes available colormap entries: 8 per subfield red, green, blue masks: 0x7, 0x38, 0xc0 significant bits in color specification: 8 bits visual: visual id: 0x27 class: StaticGray depth: 8 planes available colormap entries: 256 red, green, blue masks: 0x0, 0x0, 0x0 significant bits in color specification: 8 bits