Debug limited load says 'Script Error' with no helpful data

[#1]

Can anyone help me know what to look at to resolve this script error?  I have run the script successfully in debug mode for 1M records, but when i try to run it again for more records the message "Script Error" appears in the lower right quadrant of the debug screen as soon as I check the box for Limited Load.  Below is the full text from the lower right quadrant:

ScriptError
CD	"C:"
CD2	""
QvPath	"C:\Program Files\QlikView\Distribution Service"
QvRoot	"C:"
QvWorkPath	"\\na01\qvshare_dev"
QvWorkRoot	"\\na01\"
WinPath	"C:\Windows"
WinRoot	"C:"
ErrorMode	1
StripComments	1
OpenUrlTimeout	86400
ScriptErrorCount	0
ScriptErrorList	""
FLOPPY	"A:"
ThousandSep	","
DecimalSep	"."
MoneyThousandSep	","
MoneyDecimalSep	"."
MoneyFormat	"$#,##0.00;($#,##0.00)"
TimeFormat	"h:mm:ss TT"
DateFormat	"M/D/YYYY"
TimestampFormat	"M/D/YYYY h:mm:ss[.fff] TT"
MonthNames	"Jan;Feb;Mar;Apr;May;Jun;Jul;Aug;Sep;Oct;Nov;Dec"
DayNames	"Mon;Tue;Wed;Thu;Fri;Sat;Sun"
QVDataLocation	"\\na01\qvshare_dev\"
QVD_location	"\\na01\qvshare_dev\"
ScriptErrorDetails	<NULL>
vMinDate	38166
vMaxDate	41879
vToday	40731
VChange	40701
vCoupon_min	40817
vCoupon_max	40908
vMaxYear	2014
vMaxQtr	3
vMaxWeek	35
vMaxYrMth	201410
vMaxQtrNbr	23
vMaxWeekNbr	296
vMaxWeekDay	4
vMaxQtrDay	60
vMaxYrDay	242
vMaxDataDate	41723
vCustomStartWk	10
vCustomEndWk	28
vComparisonYear_1	2012
vComparisonYear_2	""
vComparisonFiscalPeriod_1	3
vComparisonFiscalPeriod_2	7
vMaxPeriodEnd	"=if(vComparisonFiscalPeriod_1 = 1, 12, if(vComparisonFiscalPeriod_1 > 1, (vComparisonFiscalPeriod_1-1)))"
vCustomPeriodSeq	34
vCouponUseMonth	"MonthName(AddMonths(Today(),-1))"