[amibroker] Error 10. Subscript out of range. You must not access array elements outside 0..

[murthysuresh]

i get the error when ther is white space on the right hand side as seen in this 
link.
http://screencast.com/t/sxLi3oR8

however my code seems to only loop between the fistvisible bar and 
lastvisiblebar. so i dont see why i should get a subscript out of range error. 
when i scroll the chart to the right and if there is no white space, the error 
disapprears.
appreciate any help

StaticVarSetText( "TradeType" , "Stocks" );  //Stocks|Forex
StaticVarSetText( "forexSymbol" , "PVTB" ); //"EUR.USD-IDEALPRO-CASH|
StaticVarSetText( "StockSymbol", "PVTB" ); //  "YHOO"
StaticVarSetText( "ShortOrLong" , "Short" );  //"Short|Long"
StaticVarSetText( "EntryPrice" , "11.90000,11.90000" );
StaticVarSetText( "ExitPrice" , "10.45000,10.45000" );
StaticVarSetText( "EntryDate" , "1090303,1090303" );
StaticVarSetText( "ExitDate" , "1090304,1090304" );
StaticVarSetText( "EntryTime" , "95126,95126" );
StaticVarSetText( "ExitTime" , "141019,141019" );
StaticVarSet( "NoOfEntries" , 2 );
StaticVarSet( "NoOfExits" , 2 );
StaticVarSet( "Tradeid" , 1017 );
StaticVarSetText( "TradeComments" , "" );
StaticVarSetText( "TradeStrategy" , "" );


dn = DateNum();

tn = TimeNum();


firstVisibleBar = Status( "firstvisiblebar" );
lastVisibleBar = Status( "lastvisiblebar" );

for ( b = firstVisibleBar;b < lastVisibleBar ;b++ )

{
    // START OF DAILY

    for ( i = 0 ;i <2;i++ )
    {
        // _TRACE( "ABTest: test 182 " + "matchig dn " + NumToStr( dn[b] ) );
        //  _TRACE( "ABTest: test 182 " + i );
        EntryDatei = VarGet( "EntryDate"  + i ) ;

        if ( ( EntryDatei  >    dn[b] - 1 )  AND ( EntryDatei < dn[b] + 1       
 ) AND ( b < lastVisibleBar )  )
        {

            entryPrices[b] = VarGet( "EntryPrice" + i );
            Buy[b] = Short[b] = True;
            //_TRACE( "ABTest: test 182 matching price " + NumToStr( VarGet( 
"EntryPrice" + i ) ) ) ;
            // _TRACE( "ABTest: test 182 matching price " + NumToStr( VarGet( 
"EntryPrice" + i ) ) ) ;



            PlotText( ShortOrLong  +  " entry " + i + " " + ":" + 
entryPrices[b]   , b, ( yHigh + High[b] ) / 2, colorBlue );
            PlotText( "entry" + entryPrices[b]  , b, EntryPrice0, colorBlue );

            //  _TRACE( "ABTest: test 182 MATCHED " + NumToStr( VarGet( 
"EntryDate" + i ) ) + NumToStr( dn[b] ) );

        }

    }
}