Isoloader issues (HDD mod + Bios mod)

[nicolas1400]

Hi comunity!

Im Nicolas, from Argentina.
Thanks to SWAT for all the effort on making Dreamshell posible.

I'd made the Bios Mod + HDD mod to my 3 dreamcast motherboards.

Bios mod is working great.
Currently I am able to boot all 3 dreamcast from the second bios (with the RC4 retail bootloader) and I reach the dreamshell desktop (loaded from a 3.5'' 80GB Hitachi Deskstar HDD)

But the problem is that when I get into Isoloader, only ONE of my dreamcast boots games correctly. The other two dreamcasts frezzes (black screen) when I try to run ANY game inside Isoloader.

The HDD I am using is always the same, and the game settings in isoloader are correct.

I assume all my HDD mods are OK, because I am able to use all the dreamshell applications (including GDRom ripping) but the only problem is when I launch a game inside Isoloader.

Any advice on how to find the problem? I'm getting mad trying to solve this..

Thanks in advance.

Nicolas.