I just upgraded my Windows 7/X64 system from 6GB RAM to 12GB RAM. Everything is running fine except that my DVD drives (IDE - I have 2) both suddenly became very, very, very slow.
If I go to explorer and click or right click on the DVD drive it can take more than 10 minutes to read the drive at all. I see the green bar at the top of the explorer window very, very slowly progressing from left to right.
If/when the drive opens and I click on an app (say setup), it may take minutes more before anything happens.
Everything hard drive based runs very quickly, maybe faster than before.
I don't know if this is some sort of weird hardware conflict or if it is something in the OS. Device Manager shows no problems.