I have no idea where the lies, so I'll go over everything. First of all, my setup is an R4DS (of course), with a Nintendo Wi-Fi Connector on XP. I used this guide, so it's using the (modified?) Buffalo drivers and ASUS WLAN Control Center. I used this guide to SavSender, and I'm using NetCat Version 1.11 NT while savsend is (of course) 1.1. After I was directed to savsend in another topic, I successfully copied saves from several of my DS games. Then I tried them with ROMs on the R4, and they worked. I successfully changed the save for Touch Detective 2 1/2 and transferred the new one to the original cart as a test. So far so good. However, for some reason my USB Connector shuts off after transferring the new save file. The light stops blinking, and I have to unplug it and plug it back in before it will work again, though for some reason ASUS still sees it there and working. Now, I'm trying to do the same for Ouendan 2 (after enabling RBA mode on the R4), and it won't work. Instead of shutting off after the transfer, it shuts off in the middle. SavSender just hangs/freezes, mid-transfer, and NetCat hangs for a while then quits on its own (same as success; though it will quit immediately if I unplug the non-functioning Connector). Working (Touch Detective 2 1/2): I've tried several times, and it usually ends with exactly 15 dots, though once or twice it got further.