Thanks for trying fusion. Fusion 5.0.3 does NOT officially support Mac 10.9 since 5.0.3 was released at March 2013, but 10.9 DP came out at June. However, couples of user on the forum said they run the 5.0.3 fine with Mavericks. I suggest you reboot your Mac and reinstall Fusion 5.0.3 build number 1040386. If it still doesn't work, could you collect and attach the log bundle by Menu Help-> Collect Support Information, or go to ~/Library/Logs/VMware Fusion/ attached the vmware-vmfusion.log here. Thanks for your help.
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