The Horror of it all!   Customers call when they get this error and exclaim all manner of frustration.  They've often spent several days trying to recover from this error - including re-booting, deleting and reloading the software, re-configuration of the instrument.  Violence is often part of the equation and sometimes I think drinking is also involved.  This particular error is very harsh and very un-forgiving.   In fact, the only way to recover from this insidious error is to reboot your PC!  Sometimes you even have to pull the plug.  Yikes!