Device Mgr - Network Adaptors showing small yellow triangles with q/mark

[RsC]

I'm operating Vista home premium - within Device Mgr and under Network adaptors - I have 5 items showing a small yellow triangle with a question mark, these are -

6TO4 Adaptor
6TO4 Adaptor
Microsoft 6to4 Adaptor#14
isatap.(995E7B2F-OB1E430D-95D5-4983F88E730D)
isatap.(A3FB1218-OEED-4675-9C25-C346A2C9CE4E)

What does this mean? Is something malfunctioning? Can I sort them? Should I delete them?
There are another 2 -

Speedtouch USB ADSL PPP
Via Rhine 2 Fast Ethernet Adaptor

But both of these do not show any yellow triangles like the others above.

What's going on here?

[contrex]

Lots of Vista users get these showing for 6 to 4 adapters and isatap. especially Dell and HP owners. If your PC is working OK don't worry.

[RsC]

Thanks, I was begining to worry about these.