Monaro427, internazionale , this issue will require more thorough investigation.
Please make sure that "Create the log file" option is enabled under IM+ "Settings" / "Other", reproduce this issue and then please send us a support request from IM+ "Info" / "Support request". We will receive IM+ logs, analyse them and advise further.
blackshadow69, in case you are experiencing same problem (excessive RAM usage), please report it in here. Otherwise the unrelated posts will be considered as flooding and will be deleted.