Exit Error in LEC batch mode

Hi Guys,

I got one problem when I ran lec in batch mode:

$> lec -nogui -ultra -dofile mc_lec.do

In mc_lec.do file, the last command is : exit -f

But somehow, xterm pops up the following messages:

// Command: report message -compare -verbose > reports/mcv2/lec.cmpmsg
// Command: report compare data -class noneq > reports/mcv2/lec.noneq
// Command: report unmapped points -Extra -notmapped > reports/mcv2/lec.notmap
// Command: report compare data -class abort > reports/mcv2/lec.abort
// Command: exit -force
// ERROR [Internal]:
// Exit and report the error to Cadence Customer Support

and can't go back to normal tcsh mode..

And I can't use CTR^C and CTR^X to exit...

Does anyone have the same problem?

Thanks

James