Same problem here. I did what you adviced, but it did not help...
PS: I left one server unmenaged for last night and found this now:
"Lock system: You can only run maximal 1 instances of the software at the same time"... and I have 100+ "LicenceHelper" processes running, where each one uses 23-24MB RAM. Lucky me I have plenty of RAM, but it looks like a big bug to me.