ESXi 5 Doesn't Like My LSI MegaRAID

Hi,

I have an LSI MegaRAID SATA 300-8XLP PCI-E controller.  This worked perfectly in ESXI 4 and 4.1.

I  just tried upgrading to 5.0, and the device is shown in the Storage  Adapters list, and correctly recognized.  But the bottom box, has no  devices or paths listed.  This means I can't get to to my main VMFS  store.

The device is still listed on the HCL as supported, so what can I do to get my main VMFS store back.

Cheers.