Hi,
Try to following and send us the feedback:(as root) yum remove xcircuit
(as root) yum install xcircuit -y
Installed:xcircuit.i686 0:3.6.164-2.fc15Complete![chetanpatil@chetanpatil ~]$ xcircuitX Error of failed request: BadValue (integer parameter out of range for operation)Major opcode of failed request: 53 (X_CreatePixmap)Value in failed request: 0x0Serial number of failed request: 5160Current serial number in output stream: 5162