System hangs while working with Adobe forms in Eclipse

Hi, I am new to SAP ABAP and ABAP in Eclipse. So far we were using SAP GUI, but now we are moving towards Eclipse for ABAP.

I am creating adobe forms  in eclipse using Open with SAP GUI option. I am able to create and execute in eclipse  but it always hangs when I try opening the layout and then closing it. Once it hangs, I need to kill Eclipse process from task manager.

Can anybody help me?

My system configurations are as below :

                         Adobe live cycle designer version : 9.0

                         SAP net weaver : SAP Ehp3 for 7.0 SP12

                         SAP ECC : Ehp6 for SAP ERP 6.0 SP12

Thanks in advance.