Right Mark I'll get to reinstall A.S.A.P. and will report when  I'm done.It might take me the rest of the week...

Thanks for your support and guidelines above. Just realized Acceleration is not in the list of Programs and features in Control Panel, meaning the guy that helped me didn't install it, since he let FSX install by default in program files (x86)doesn't help but a complete reinstall into a new folder under my C:\

Bernardo