Korg Poly800/EX800 Users

Hello All Community,

I know this one has been already processed on this site many times. 
But anyway I DARE to ask it again. Appologies for that.

I am happy user of Poly 800MKII. I did a moog slayer mod and more and 
more like this beauty - for its wet/silky sound.

However under SW (Logic) sequence it crashes every 2nd second. I 
filtered out all not necessary MIDI messages it still crashes.
From other posts I learned that it "may" happen. In my case it is not 
that it may "happen" it is pernament issue. Just every time sequencer 
starts it crashes and I have to reload SYSEX. It is funny if I 
control it from other leyboard (Yamaha V50 or roland Juno) it is 
fine???

Ok I know this is a bug in EPROM midi implementation - no room to do 
it right in that specific model. Am I right?


Now question :

Is ther a good/quick fix on this??? Can I just buy somewere EPROM 
with corrected problem (maybe with other limitation like no local KBD 
or something?)
If fix was already posted pls give me a hint on which post.

I really appreciate any support or hint.

Brgds

Marek