X error

hi, the xemacs-21.4.? generation produces the error message below (in the xterm-window) from where we called xemacs. at the same time all xemacs-frames turn white and most often nothing helps but kill -9 ... any suggestions? tomy xemacs-21.4.5: X Error of failed request: BadIDChoice (invalid resource ID chosen for this connection) Major opcode of failed request: 1 (X_CreateWindow) Resource id in failed request: 0x4000305 Serial number of failed request: 101942 Current serial number in output stream: 167282 xemacs-21.4.5: X Error of failed request: BadIDChoice (invalid resource ID chosen for this connection) Major opcode of failed request: 1 (X_CreateWindow) Resource id in failed request: 0x4000306 Serial number of failed request: 101968 Current serial number in output stream: 167282 xemacs-21.4.5: X Error of failed request: BadIDChoice (invalid resource ID chosen for this connection) Major opcode of failed request: 1 (X_CreateWindow) Resource id in failed request: 0x4000307 Serial number of failed request: 101991 Current serial number in output stream: 167282 xemacs-21.4.5: X Error of failed request: BadImplementation (server does not implement operation) Major opcode of failed request: 20 (X_GetProperty) Serial number of failed request: 218003 Current serial number in output stream: 218003