I guess now is the time to open my mouth and try to place my foot inside. The various crashes causes by the installation of 8803 are due to a bug in LSVBITFD. I must have been completely drunk the day I wrote this. I was using a wraparound stack buffer which was wraparound only in my mind, since I had forgotten a few instructions in the relevant places. Fortunately, the stack was oversized (1 entry per node, which is the maximum number of entries it can receive in theory), and we never had any problem. With the addition of the HEARN-FRMOP22 line, the network complexity grew and the stack was overflowed. Anyway I've replaced all this with a direct-access array of flags coupled with a chained list which solved the problem and had the side-effect of speeding the program by 20-25%. I still can't understand how I could have used something as slow as this "wraparound" heap which didn't prevent duplicates, but nevermind. The updated version is being tested at CEARN, BNANDP11 and HEARN. If everything goes fine, I will send a FIX15M4 shipment so that Hans-Ulrich may send the 8803 files to the States. Since FRULM11 is down, you're likely to get this mail a long time after the shipment. Sigh. Eric