If you added a Round and saved the data, the Round will not show up in Current Investments until you have a transaction created for that Round.
One way to check whether the Round you added is in the Seraf system is to click on the Portfolio Management link on the left hand navigation, then click on the Edit/Delete button. Choose "A Round of Investment" and click on the edit button. A drop down menu will appear on the right hand side of the page. Select the company that the round is associated with. Once you have selected a company, a second drop down menu will appear with the names of the rounds. If you have correctly entered a round and saved it, it should appear in the drop down menu. If you don't see the round there, chances are you forgot to save your entry.