When I open the file open dialog box under Windows 7, the up one level, create new folder, list and details icons do not appear properly with one icon as a grey square. The tooltip and a "ghost" icon outline appear when I hover over where the icons should be. I attach a snip of the screen.
This problem you are experiencing is a known Java bug. The problem has been fixed by the latest release of Java (6 update 18) which at the moment is not bundled with Omniscope 2.5. However, it will probably be bundled with Omniscope 2.6 which will be available in Beta very soon.
Yes, updating your Java to 6 update 18 and then making Omniscope use it should fix it. You can do this by following the steps below:
1) Install the latest JRE by clicking "Download JRE" button from http://java.sun.com/javase/downloads/index.jsp
2) Once installed you will need to update the installconfig.properties JVM_DIR to the location of the JRE installed. By default the JRE will be installed to c:\program files\Java\jre6, and you will need to make the JVM_DIR property within the installconfig.properties point to this location. For further information on how to edit the installconfig.properties file please refer to http://www.visokio.com/kb/installconfig
Regarding refreshing from Oracle not working, try updating the Java version and see if that works. If not, try connecting to the Oracle database and, when it fails, submit a bug report. Once we have the bug report one of our support personnel will get back in touch with you.
I forgot to mention in my previous post you will need to enable "Report database errors as bugs" option from within Omniscope temporarily, otherwise you will not let you report database errors as bugs.
You can enable this option from Settings > Advanced > Miscellaneous > Report database errors. Once you have submitted the bug report you can disable the reporting of bug reports by simply clicking on the option again.