We currently have an issue with a driver package that is causing SCCM 2007 Task Sequences to fail immediately after selecting them. The error message reports being unable to find the source files for package CM100254.
We are currently in the process of re-creating this package and re-adding it to the Task Sequences, so this issue will remain until we have completed this work (hopefully with the next hour or so). We will e-mail and update the blog when the issue is resolved.
The Task Sequences affected are all PC Labs and PC Staff Task Sequences. Mac Task Sequences are not affected.
Apologies for any inconvenience caused.