Man, I've got a doozy here. Anyone even willing to merely READ through the following wall of text is eligible for various sexual favors from me. Anyhow, I'm running 4.1U, right?-- I followed this step-by-step, having already had HBC up and running in order to play Wii VC .wads, primarily. Ran into some hiccups as is the usual when trying to hack anything as a nub like myself. After installing various cIOSes (which may be part of the issue in question) I determined that is was my USB HD that was incompatible with the process. I went out and got a AC powered WD drive and have been having fun ever since! I appended a couple more IOSes in order to get my Monster Hunter backup functioning, btw. Hermes' combined IOSes, to be exact. I ran my backup of SSX Blur, and quit to the Wii System Menu using the Home menu, and was met with the dreaded black screen. I late read that trying to chain load games may not be the best of practices. Great. I searched online how to circumvent/undo this black screen I was running into after I press A to get through the Health Screen, and learned about the Maintenance Menu. Pressed + & - at the Health Screen, and was able to access the System Menu, HBC & my Forwarded USB Loader GX channel, run games, run WiiWare & VC games without a problem. That is, unless I tried to kick back to the Wii Menu. Wherein I get that black screen. I also discovered recently that I cannot get into my Mii channel, because it's corrupted or some other.. This saddens me greatly. Because I cannot leave well enough alone, I set out to fix this problem. I think I have something like 25 cIOSes now. I have made little headway in this endeavor, but I have attended to some things in the meantime. I installed Preloader .29, then upgraded to Priiloader, (finally) installed BootMii and backed up my NAND (in case I screw things up worse.) Tried to use a .wad to reinstall System Menu 4.1U, nothing. Put Priiloader back on immediately. Tried to use Priiloader to self-delete and restore the system menu, nothing. Put Priiloader back on immediately. I did some more extensive searching, and reasoned that I am experiencing the rare and troublesome Mailbox Brick. I followed the suggested step-by-step to get and use the FT Toolbox Mailbox Brick Fix. Got into the system NAND, flashed data from the SD card, trying to induce a mailbox account failure and reinstall. That didn't work, BUT...now when I kick back to the Wii System Menu from HBC, it loads just fine. I can see everything, everything works, I can see the Mailbox and messages in it (saved from Rabbids Go Home, man those little guys are so humorous.) Tried to access the Mii Channel... says it's corrupted as before, hit A to return to menu... black screen lock up. If I try to access the System Menu through any other process... BootMii, or circumventing BootMii from a power on... black screen lock up. Any suggestions? Do I back up all my WiiWare/ VC games and saves with Waninoko's Savegame Backup tool and brave a Wii reformat, or should I just leave well enough alone since it's only a semi-brick? Any insight as all is highly appreciated, tried over at the USB Loader GX forums (back when I thought maybe that program was the source of the issue, don't really think that now) and haven't heard anything. Many thanks! ~LX.