I am having some strange problems on a USB enclosure with two different HDs. I read about last 20 pages of the long USB Loader GX thread, and also googled on this website, but could not find anything. So here are my problems: My system is 4.1U recently upgraded from a downgraded 3.2U (was 3.4U prior). I have CIOS38rev14 on IOS249, and have NeoGamma R7 and USB Loader GX, etc. The enclosure is 2.5in no brand PATA. The 1st HD I put in is a 40GB 4200rpm Hitachi Travelstar. I could run most of the ~15 games I tested, including some that require 002 fix enabled. I did not test alt dol games yet. The problem is that only games directly installed from the Wii USB Loader GX interface work. For several games, including Wii sports, Wii play, Mario Kart, WarioWare Smooth Moves, Wario Land Shake it, I tried to load the games from the WBFS Manager 3.0 with the iso images that I originally downloaded long time ago, they did not work. Later I reinstalled these games with the DVD+R disc on the wii, and this time they all worked. The funny thing is that, all these DVD+R discs were originally burnt from the same iso images I tried earlier. The only difference is that, the DVD+R discs were WiiBrickBlocker processed before burning on them, but the iso's I saved are still the original (not wiibrickblocker processed). Had anyone else had the similar problem? What could be the reason for WBFS install not working while Wii install working? Could wiibrickbloker be the reason? I will try WBFS install a wiibrickblockered iso later. The 2nd HD is a 60GB 7200rpm Hitachi Travelstar. With this HD, I could play some of the games. But for some other games that worked for the 40GB, I only get a black screen on the 60GB. I don't know if this is a compatibility issue with the USB Loader, since the same enclosure works for the 40GB, and also some games do work on the 60GB. Again, could someone point out what is the possible reason for this? Thanks.