Grrr, really? Damn cheap modchips...

(now that you mention it you're probablly right; the Aladdins likely pull LFRAME to ground when booted... and keep it there

)
@ Dreamachine: Your Xenium however *does not* do this, and only uses LFRAME to load the chip; it actually communicates over LFRAME and doesn't just ground it like most chips...
I'd give m8plus_16 a shot

Sounds like you may have a 1.6b xbox. (m8_plus is the newer version of m8; DO NOT use it on the Aladdin Advance XTs as they will not boot; m8plus_16 will work fine on your xenium however, and if you want live blocking, you can even use the metoo edition of m8plus_16 (In the 1.4.1 release of metoo).