Emu XL-7 & MP-7 User's Group

I bought a mp-7 about 2 weeks ago from ebay and have been using it just 
fine i also ordered the extreme lead version 2 rom that just came in 
today. I followed the instructions exactly being careful not to touch 
or do anything when i installed the new rom but when i turned the mp-7 
back on boom no sound roms found. I took out the new rom hoping it was 
just that well no sound on my mp-7 original rom either. I just spent 
about 450.00 for all this am i stuck with a huge paper weight now? I 
really cant believe this is happening and hope someone has a quick fix. 
Thanks.