Thanks Bob,

1. Celestron - hopefully there is a user. Am assuming ACP requires the telescope to be aligned and tracking before an ACP command to slew can be given.

2. Remote - no worries - not a ACP issue anyway

3. Filter - have written to Atik.

4, Focusmax - checked elsewhere on these threads and located one which discussed this issue. It is a Vista issue as I thought. I have to load and run ''bat file'' ?? God help me but we'll see how we go.

Purchasing after Christmas pressies are all collected hopefully I'll be running by then.

Happy Christmas one and all.