Hi there BeakyBird,
I can only sympathise with you as I too have experienced problems with my X1. The following is what I have found:
1. Faulty Display (where it completely cuts out sometimes and I had to tap the display to get the light to work again).
2. Faulty HD, where 90% of the time the keyboard did not recognise it was there, then all of a sudden it would.
3. The right speaker would occasionally fade out, making it sound like it was fully balanced to the left. Again, a tap on the side would sort it out, but then it would re-occurr after an hour or so.
4. Occasional read write errors on the FD drive. Even after cleaning, there was still problems.
5. O/S crashes or freezes during a performance OR when sequencing a song.
These are the problems I was & am still getting. The display problem turned out that the 'tube' had gone, in which needed replacing as was.
The HD was faulty, that was replaced also.
The speaker problems aparently has something to do with the amplifier being faulty, though I have not had this fixed yet as it has not happened for a while now and I cant be bothered to send it in for the 4th time now.
And the O/S system, theres nothing that I can do about it because it still crashes even with the up to date versions.
Even with all these problems, I still think the X1 is the best I have personally used and heard to date and I would not change it for anything at the moment.
DannyUK