crash when executing saved sql

was simply trying to run a saved sql script
date/time : 2011-04-03, 15:55:36, 699ms
computer name : DADLAPTOP-PC
user name : DadLaptop <admin>
registered owner : Microsoft / Microsoft
operating system : Windows Vista x64 Service Pack 2 build 6002
system language : English
system up time : 9 days 4 hours
program up time : 2 hours 58 minutes
processors : 2x Intel(R) Core(TM)2 Duo CPU T5750 @ 2.00GHz
physical memory : 951/4085 MB (free/total)
free disk space : (C:) 57.84 GB
display mode : 1280x800, 32 bit
process id : $17a4
allocated memory : 57.32 MB
executable : heidisql.exe
exec. date/time : 2011-04-03 12:57
version : 6.0.0.3747
compiled with : Delphi XE
madExcept version : 3.0m beta 1
callstack crc : $04c54051, $9df7914c, $9df7914c
exception number : 1
exception class : EAccessViolation
exception message : Access violation at address 04C54051 in module 'libmysql.dll'. Write of address 00000000.

thread $1520 (TQueryThread):
04c54051 libmysql.dll
04c2bebb libmysql.dll mysql_real_query
0073df99 heidisql.exe dbconnection 1266 +20 TMySQLConnection.Query
006b06e7 heidisql.exe helpers 2947 +35 TQueryThread.Execute
00407358 heidisql.exe System 548 +0 ThreadWrapper
004605b1 heidisql.exe madExcept CallThreadProcSafe
0046061b heidisql.exe madExcept ThreadExceptFrame
7615ecc9 kernel32.dll BaseThreadInitThunk
>> created by main thread ($10b8) at:
006b0476 heidisql.exe helpers 2887 +1 TQueryThread.Create

main thread ($10b8):
00000000 heidisql.exe madStackTrace +0 StackAddrToStr
>> stack will be calculated soon