Fail to establish Instrument Creation Window

[sleestack]

window name "help" already exists in parent
window name "help" already exists in parent
    while executing
"frame $icp.help -borderwidth $evv(SBDR)"
    (procedure "CreateIns" line 59)
    invoked from within
"CreateIns"
    invoked from within
".workspace.1.a.top.machcr invoke"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 [list $w invoke]"
    (procedure "tk::ButtonUp" line 23)
    invoked from within
"tk::ButtonUp .workspace.1.a.top.machcr"
    (command bound to event)

I can click Instrument button once. and then never again. I get the above error. (in soundloom Mac)[/list]