Network share behaves differently in 2 editors: ISE and PowerGUI

Following line works fine in ISE , but generates an exception in PowerGUI. Any suggestions?

Get-ChildItem “\server_name\share

Cannot find path '\server_name\share’ because it does not exist.

Kirk might have an idea as he used to work on PowerGUI, but you might ask at since it’s more product-specific?

Thank you Don. I’ll do that. If I find an answer, I’ll post it here.