Thanks for the reply,
I am running Windows 7 on my laptop (Lenovo thinkpad if it matters)
The missing vocal/high range happens on commercial recordings. It also includes instrumentals found in that range.
Missing may be a misnomer, as the vocal/high range will sound distant and layered with delay/reverb and be significantly lower volume and unclear
For example, in a jazz cd the lead trumpet will sound distant and muffled, but the piano, drums, and bass will...