Prior to build 802 if I positioned the caret in the body of a unit test and pressed Ctrl-Shft-F10 Rubymine would run just that test.
Now when I press Ctrl-Shft-F10 I get an error dialogue saying "Test class not found".
If I press Ctrl-Shft-F10 outside of a method body Rubymine runs all the tests as normal.
As I mentioned this is in build 802. I am running Rubymine on Ubuntu 8.10.