Error while publishing workflow with "Form Start"

Hello Everyone,

I've created a workflow and set it to "Form Start". When I run it from the designer it works great, when I publish and run it, I'm getting the following Error:

Log Level :Error
Log Category :LogicBase.Core.Models.Dialog.DialogHttpHandlerBase
Machine Name : ALTWF01
Message :
Error starting/continuing dialog model execution LogicBase.Framework.ObjectDeserializationError: could not deserialize: LogicBase.Core.IOrchestrationComponent[] ---> System.Exception: could not find type Altiris7.TaskComponents.ExecuteDeleteMachineFromADComponent
   at LogicBase.Framework.ArrayTypeConverter.GetObject(ObjectStorageContainer container, ObjectStorageObjectData values, Type arrayType, ObjectStorageErrorHandler errorHandler)
   at LogicBase.Framework.ObjectReadStream.ReadRelationshipConverter(ObjectStorageValue objValue, Type type, ObjectStorageRelationshipTypeConverter converter)
   --- End of inner exception stack trace ---
   at LogicBase.Framework.ObjectReadStream.ReadRelationshipConverter(ObjectStorageValue objValue, Type type, ObjectStorageRelationshipTypeConverter converter)
   at LogicBase.Framework.ObjectReadStream.GetValue[T](String name)
   at LogicBase.Core.Models.AbstractComponentModel.ReadFromStream(ObjectReadStream info)
   at LogicBase.Framework.ObjectStorage.ContainerDeserialize(ObjectStorageContext context, ObjectStorageContainer container)
   at LogicBase.Framework.ObjectStorage.ZipDeserialize(ObjectStorageContext context, Stream stream)
   at LogicBase.Framework.ObjectStorage.Deserialize(FileInfo fromFile)
   at LogicBase.Core.AbstractOrchestrationProject.GetComponentModelPrivate(Model model, Type componentModelType)
   at LogicBase.Core.AbstractOrchestrationProject.GetComponentModel(String name)
   at LogicBase.Core.Models.Workflow.WorkflowExecutionEngine.StartInternalWithProcessIDReturn(IData data, String modelName, IData globalData, String testRunId, TestingScenario testingScenario)
   at LogicBase.Core.Models.Workflow.EmbeddedDialogModel.WorkflowDialogHTTPHandler.StartWorkflow(HttpContext context, DialogSession session, WorkflowDeploymentInfo deploymentInfo)
   at LogicBase.Core.Models.Workflow.EmbeddedDialogModel.WorkflowDialogHTTPHandler.StartDialog(HttpContext context, DialogSession session)
   at LogicBase.Core.Models.Dialog.DialogHttpHandlerBase.System.Web.IHttpHandler.ProcessRequest(HttpContext context)

I repeat: It works without any problems while I run it from the designer.

Thanks in advance,

Dan.