can not open x0 on a PC/Window/X-terminal

[Chinese Grass]

I am using xwin (a X-terminal emulator on PC/microsoftWindow3.1 
with winsock) to connect a Sun host via. MIT/X11R5/xdm.

The 'd.mon start=x0' runs ok on the Sun host, but on
the PC/X-terminal, I got the following message:

----------------
X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  78 (X_CreateColormap)
  Serial number of failed request:  26
  Current serial number in output stream:  27
Please start graphics monitor <x0>.
Error - Graphics monitor <x0> not running!
Problem selecting x0. Will try once more
Please start graphics monitor <x0>.
Error - Graphics monitor <x0> not running!
----------------

I will appreicate any help for solving this error.

| Jehng-Jung Kao, Associate Prof.  Email:jjkao at ev001.ev.nctu.edu.tw
| Inst. of Environ. Engrg.         Voice/Fax:886-35-712171x2933/728251
| National Chiao Tung Univ., 75 Po-Ai St., Hsinchu, Taiwan 30090, ROC.
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