Hi Robert - That station has telemetry issues. We're trying to work on it this week from the Kenai side of things. Thanks, Cheryl -------- robert somervillle wrote: Hi; I was just wondering what is causing those big DC shifts/drifts that we sometimes see in the Iliamna webcorder displays ? Cheers; Robert Somerville -- Cheryl Cameron Geologist, Alaska Volcano Observatory Alaska Division of Geological & Geophysical Surveys voice: 907-451-5012 fax: 907-451-5050