Some R4SDHC help please.

I have a few problems that have been annoying me lately and help would be appreciated. First Space Invaders extreme goes black after I complete the first level, Second in Casltevania:Dawn of sorrow in one hall where I have previously been and it was fine, there is now no background but I can see the enemy's still and thirdly is there a way in which I can play Kingdom Hearts. I can't get the patch to work. Can someone post a Rom which has already been patched? help on any of these would be a huge help.
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Ok I found out how to fix Castlevania but I still really need a Space invaders fix and any KH advice would be nice.

If you're using a flashcart, make sure you have the latest firmware. http://www.linfoxdomain.com/ds/ There are a few pre-patched ROMs of Kingdom Hearts posted in the NDS Trading Station (bottom of forum) and the sticky thread in Technical Help.