GNASH crashes when starting to play video (streaming).

1. Enter the page with a streamed video, e.g.: 
http://www.youtube.com/watch?v=IF8bUeM_JGU&feature=topvideos
http://www.stream.cz/video/565196-metallica-cimbalovka

Result:
  GNASH shows crash info or kdump shows info about gnash crashing

Expected result:
  Video is played by a flash player

Note:
  Other flash (swf) applications/applets work correctly, this bug happens just for streaming.

Attached info:

BFD: Warning: /var/spool/abrt/ccpp-1298724412-3063/coredump is truncated: expected core file size >= 13594624, found: 225280.
[New Thread 3066]
[New Thread 3063]
Core was generated by `/usr/bin/gtk-gnash -u http://bbcdn.go.cz.bbelements.com/logos/cdn8004/b169396_1'.
Program terminated with signal 6, Aborted.
#0  __kernel_vsyscall () at arch/x86/vdso/vdso32/int80.S:16
16	arch/x86/vdso/vdso32/int80.S: No such file or directory.
	in arch/x86/vdso/vdso32/int80.S

Thread 2 (Thread 3063):
#0  __kernel_vsyscall () at arch/x86/vdso/vdso32/int80.S:16
No locals.
Cannot access memory at address 0xbfc72f24

Thread 1 (Thread 3066):
#0  __kernel_vsyscall () at arch/x86/vdso/vdso32/int80.S:16
No locals.
Cannot access memory at address 0xb35bd96c
From        To          Syms Read   Shared Object Library
0x00898850  0x008afacf  Yes (*)     /lib/ld-linux.so.2
(*): Shared library is missing debugging information.
No symbol "__abort_msg" in current context.
No symbol "__glib_assert_msg" in current context.
eax            0x0	0
ecx            0xbfa	3066
edx            0x6	6
ebx            0xbf7	3063
esp            0xb35bd96c	0xb35bd96c
ebp            0xb35bd978	0xb35bd978
esi            0xa028db	10496219
edi            0xa3eff4	10743796
eip            0x172416	0x172416 <__kernel_vsyscall+2>
eflags         0x200202	[ IF ID ]
cs             0x73	115
ss             0x7b	123
ds             0x7b	123
es             0x7b	123
fs             0x0	0
gs             0x33	51
Dump of assembler code for function __kernel_vsyscall:
   0x00172414 <+0>:	int    $0x80
=> 0x00172416 <+2>:	ret    
End of assembler dump.