I vaguely remember some of the guys referring to it, so possibly.
Well i am not sure the virus itself would be a cause since many of us have it for years and have no problems. Once the liver gets in bad shape then there can be problems, also people with diabetes can can suffer from ED. Unless your cirrhotic I would just guess to say it would be more of the diabetes....... Also remember there are many other things that can cause this....... Good luck
HCV and diabetes can cause both erectyle dysfunction and cardiovascular disease.
http://www.hepatitis-central.com/mt/archives/2007/03/how_hepatitis_c.html
http://www.heart.org/HEARTORG/Conditions/Diabetes/WhyDiabetesMatters/Cardiovascular-Disease-Diabetes_UCM_313865_Article.jsp
Co
http://www.bumc.bu.edu/sexualmedicine/publications/the-central-mechanisms-of-sexual-function/