Not working MemTest.

[iX]

Hi!
I have installed Kubuntu 8.04.2 on HP Compaq ~two year old machine - 1GB RAM, and wanted to try memtest recently, but it don't work!
It say something like "Could'nt load selected item into memory" or something close like that...
All others items from the menu.lst is workig:

title		Kubuntu 8.04.2, Kernel 2.6.24.24 Generic
root		(hd0,2)
kernel		/boot/vmlinuz-2.6.24-24-generic root=/dev/sda3 ro quiet splash rootflags=data=writeback
initrd		/boot/initrd.img-2.6.24-24-generic
quiet

title		Kubuntu 8.04.2, Kernel 2.6.24.24 Generic (Recovery Mode)
root		(hd0,2)
kernel		/boot/vmlinuz-2.6.24-24-generic root=/dev/sda3 ro single rootflags=data=writeback
initrd		/boot/initrd.img-2.6.24-24-generic

title		Kubuntu 8.04.2, MemTest86+
root		(hd0,2)
kernel		/boot/memtest86+.bin
quiet

title		WinXP
root		(hd0,1)
savedefault
makeactive
chainloader	+1

I had a idea that my LiveCD is broken (is not, I checked it twice later), so I reinstal Grub + MemTest via Adept - no change.
Have AnyOne any idea whats wrong? Is there something rotten :-X in BiOS?