Cannot allocate colormap entry for "string"

Cause

This message from libXt (X Intrinsics library) indicates that the system color map was full, even before the color name specified in quotes was requested. Some applications can continue after this message. Other applications, such as workspace properties color, fail to come up when the color map is full.

Action

Exit the programs that make heavy use of the color map, then restart the failed application and try again.