I installed Crossover 9 and Quicken 2010 (using the automatic install). No errors were reported. Conversion of my data file took about 7 minutes on a 12GB, 3GHz, Mac Pro Quad - it appeared to be using all 4 cores. My data was correct and I immediately killed the registration prompt. While normal operation seems pretty much OK (including check printing), it seems that there is a problem which has something to do with "daughter windows"(pop-ups like the One Step Update). I have encountered very frequent crashes (qw.exe has encountered a very serious problem and needs to close). This locks up Crossover as well and I need to quit both manually. My data files may lose some updates (and preferences like sounds and enter to move from field to field seem not to stick) but I have not encountered any damage from the crashes. I have, so far, not encountered any crashes without a pop-up window being present. FWIW, I have filed a bug report - Ticket 787016.