Got the BOINC thing all working now apart from one minor thing

I have 1 project which is the climate change thing and i have 2 tasks. One is all working fine and the other one was ready to start.

I say was ready to start..... I clicked abort hoping that the 2nd task would go away and now its still there just said aborted by user in the status box.

Is there any way to clear it away without losing the task that my computer is actually working on?

Cheers