Hi,
Hmm... Not sure what is causing this. There is something you could do which would help us a lot. First, you will need the Java JDK installed, which you can get from here if you do not already have it installed:
http://www.oracle.com/technetwork/java/javase/downloads/index.html. Once downloaded, run soapUI as you normally would until you notice that it is using a lot of memory and is slugish (but before it dies). Then locate the jvisualvm.exe file which should be in the bin directory of the JDK installation. Double-click it to start it, and then double-click on the soapUI process in the Applications tree (it may come up as <Unknown Application>). Now switch to the "Monitor" tab, and press the button which says "Heap Dump". This should create a child node under the main one in the Applications tree. Right click that node and select "Save as" and save the file. It may be a pretty large file (almost 100MB), so you may not be able to mail it to us, but if you're willing to try this we can set up an FTP server or something so that you can transfer the file to us. It should help us diagnose what the problem is.
Regards,
Dain
eviware.com
