Esata hot swap problem

I have a problem with my esata port on Asus P6T Jmicron controller under Windows 7 x64 7100 and Vista Sp1 x64 I have tried the whql 17.47 driver and the newest 17.48 driver (both esata and esata no write cache), jmicron bios set to ahci mode. The hard drive that is connected to the esata port shows up in the safely remove device window, but windows doesn't let me eject the drive( saying that the drive is busy please close all programs thats accessing it.) Both system restore and page filing are turned off on that drive, antivirus is not actively scanning that drive and I have also tried disabling AV. It is also been set to "optimized for quick removal". Even if its a fresh formatted hard drive once it is plugged in and recognized, windows will not let me eject it. I also have to restart windows if I switch drives for it to be discovered(scanning for hardware changes doesn't work). But if I boot up the computer without a esata drive connected and then plug it in, windows discovers it just fine. Thank you for your time and your help!

Hard drives that I have tried with:
Seagate Barracuda.11 250g
Seagate Barracuda.11 500g
Seagate Barracuda.12 1TB
Hitachi Deskstar 7k1000 500g