SP DMA READ could not fit copy in memory segment

[Poobah]

After using Project 64 and 1964 for about half a year now, all of a sudden I've started getting this annoying error message after about 10 minutes of gameplay -- "SP DMA READ could not fit copy in memory segment". There's also one that says something or other about RDRAM. Has anyone worked out what causes this, and how to fix it up? Oh yeah and there's another error that looks like this: "SP DMA WRITE SP_DMA_ADDR_REG not in RDRAM space".

 

[phazeshift]

I'm getting this error now also, on Donkey Kong 64, but i've played through 85% of the game with no problems, and now I can't even run it for 1 minute.