This is all Java related my friend. MagicInfo seems to be quite particular to its versions, and affected by it.
My suggestion is, unistall everything (you don't need to unistall PostGre SQL), all Java instances and MagicInfo I Server. Then reboot, and install MagicInfo I Server from scratch. Then let it choose it's own Java download, BUT DON'T DO any updates - CANCEL anything like that is coming in.
It worked for me, but I am not entirely happy the new versions of Java have issues with MagicInfo (or ist it the other way round?)
Bill