Did Rogaine just change there product?!?

[eric2112]

I've been buying this stuff forever 3+ years since I had a surgical hair transplant to correct my hairline and before it would leave my hair filling fuller I use it like moose... Well I just bought a brand new box 3 month supply and the stuff isn't adding any volume to my hair like it use to ... Did I get a bad batch for once or did they change the product?