#0  0xb76f0317 in QGridLayout::rowCount () from /usr/lib/libQtGui.so.4
#1  0x080989f6 in ?? ()
#2  0x08091398 in ?? ()
#3  0x0808644d in ?? ()
#4  0x0808849f in ?? ()
#5  0x0807c05f in ?? ()
#6  0x0807a12e in ?? ()
#7  0xb70da775 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#8  0x080599b1 in ?? ()