Since upgrading 2 1/2 weeks ago the following has happened 4 times already. While in the patient's chart when going to write a script at one point AC stops working and shuts down unexpectedly(NO error message). You will have to restart the program and do not get the chance to finish the chart you were working on. The chart has to be retrieved from the "deleted charts" section. Do not know what causes the shut down. One time it occured when changing the pharmacy, another when selecting the meds from the list, and two times when opening the Rx writer. Did it happen with anyone else. ANNOYING, because you are in the room with the patient have to go trough the steps, including restarting the program and retrieving the chart. Afterwards program works fine.