Leo bodnar BU 0836X

I will try again to describe my problem with this card , when selecting engine start via FSUIPC the relevant action works , however a very strange noise is accompanied by this and stays like it for 10minutes then the noise disappears but so do various FSX flight modes ,in other words some of the MCP signals get confused and the whole flight setting needs to be shut down and restarted? If I start my engines via ctrl-E the engine starts and no noise apparent and no flight failure either?I tried to write to Leo Bodnar.com but no help so far! Thanks