I have purchased a R4 SDHC about 1 month ago, and it was fine, until today, when I want to upload some games into my R4. I purchase R4 SDHC because the old R4DS don't really update, and here in Singapore, I can't really find CycloDS or Supercard. The only available flashcart, I guess, will be R4 and R4 SDHC. Okay, back to topic. When springed my R4 out from the slot-1, I suddenly realize that there is this oily substance showering the flashcart. Under light reflection, I can see that it is somewhat liquid state, and I guess it is probably oil. Next, I took a look at the back of my R4, and there isn't any oily substance. Then, I took a look at my 2GB microSD and found there is a scratch. I begin to wonder what actually cause the oil. Is it the R4 SDHC itself, or is it the scratched microSD, or even worst, is it my Jet Black Nintendo DS Lite? Please help me to tell which of the listed item probably cause the leakage of oil?