General Description:
After an SVF file is generated with either sequential or concurrent mode, if another SVF file is generated with a different mode, iMPACT crashes.
This problem has been fixed in the latest 6.2i Service Pack, available at:
http://support.xilinx.com/xlnx/xil_sw_updates_home.jsp
The first service pack containing the fix is 6.2i Service Pack 1.