howto get aggregate checks working

[Saftnase]

i have define a group called Terminalserver and want to monitor the number of processes in that group. so i tried to use a key called
grpsum('Terminalserver',proc.num[]','last','0')
valuetype is float

all i get is the message: Incorrect key format 'key_name[param1,param2,...]'

i also tried to use the example key from the manual (hopeing i made a syntax mistake) grpsum('Zabbix Servers','vfs.fs.size[/,total]','last','0')

but the same here with only one host in the group.

whats wrong ?

using zabbix 1.4.1 on fedora core 6

[Alexei]

Thanks for reporting this!