I successfully rooted my Marquee thanks to this thread. (Verified with Root Checker Basic) But here's the problem. When I attempt to flash a new rom (I've tried the stock rom as well as the light "undeniable marquee" rom) the same thing happens.... - Rom appears to unpack and install correctly. - Phone resets, and I ge the "S/W updating" screen for several minutes. - The phone reboots into Clockwork Mod - I restart the phone - The phone boots into the Sprint ID rom! This is driving me nuts. My Android version is listed in Settings as 2.3.4 Baseband version LS855ZVC-M6600A-SCAUTSZ-3.0.40T Kernel Version 126.96.36.199 lgd@android-build #1 Build number GRJ22 SW Version LS855ZV9 I see the phone wants to install a system update, which I'm obviously not doing. I wonder if somehow the Firmware was updated and is blocking installation of custom roms, even though phone is rooted. Any suggestions? Thanks!