hi guys i had the same problem with rooting my rhodium 400 too... so i went looking for super one click over at xda. fiddled with both versions they had there. tried v1.8 first not fully rooted but it said i was "shell rooted" anyways no luck with "need root" apps. so i tried v1.7 and used the 1st "psneuter" option no root with that one. moved to 2nd option and use the "rageagainstthecage" exploit let it run for about 5 minutes and in the middle of the root procedure i turned off debugging. and low and behold
i now have full root for those "need root" apps. i also restarted phone somewhere in there. hope this helps for you worked for me
by the way im running the nand build.