7.5 Waiting for Agent to get the task - Queued

Hello all, I have a problem with Altiris.

We upgraded to 7.5 and now we cant deploy any tasks.

In the web console the tasks sit saying "Waiting for Agent to get the task" or "Queued" (depending on the task) and on the clients themselves just sit on "Waiting for new tasks"

Our environment is one NS server and two site servers with Task/Package and Network Boot services installed.