CD/DVD rom is hanging while connection mode

Hi All,

I am confused now as to why one of my VM CD/DVD Rom Drive is always hang in Connecting mode.  it stays grayed out in both condition VM online and VM offline (turned off)  I have installed VMware tools and it is running perfectly fine. Change the CD-ROM device type into host and ISO datastore. Add / Remove the CD-ROM drive again but it will always end up in (Connecting...) mode ? I have turned off the VM and turn on numerous time but still no luck yet.

FYI, my environment is as follows: vSphere client 4.1 (build 345043) connected to ESXi 4.1u1 The VM guest is Windows Server 2008 Enterprise 64 bit