Install of Leopard created problems with VMware Fusion

[brezita]

I ran 1.0 VMWare Fusion without problem on 10.4.9 for months. After install of 10.5, cannot get it to work again.

First issue: didn't find my serial number.
>>I entered my serial number.

Second Issue: got a bit further, but not much. Now Error is:

"Failed to connect to peer process"

Seems like the directories are not connecting ... but I'm not sure how to troubleshoot? Nothing is found in the VMWare help files. I'm scared to completely reinstall VMWare because I don't want to overwrite all my Windows data (email+calendar).

Is this a quick fix I just can't figure out?

[Giaguara]

If you end up reinstalling Fusion, that will not touch your existing virtual machines.
One guess why this could happen is if 10.5 was installed as Upgrade on top of the 10.4 installation, maybe OS X has replaced some kext files or not imported over everything from the 'previous' systems.

Which OS is your virtual machine running?

Can you post more specific error messages from Fusion logs?