Task Scheduler won't execute a task

I have the following vbscript to execute an Access program every day.

dim accessApp
set accessApp = createObject("Access.Application")
accessApp.OpenCurrentDataBase("K:\SUPPLY\SHARED\Al l\0MikeShipp\SchedJob.mdb")


accessApp.Run "sDownload"
accessApp.Quit
set accessApp = nothing

When I double click the icon the program runs fine. However, when I execute
it from the Task Scheduler I get the status "Could Not Start" and it does not
execute. Any ideas would be appreciated. Thanks.
--
M. Shipp