I should know better but I replaced my XP 32bit machine with a Win 7 64bit pc and installed ACP 7. Now ACP and ASA's AutoSlew (5.1.12) are not speaking again. I launch ACP and try to Connect the telescope and a Microsoft.Visual Basic window appears with the message 'Conversion from String "" to type 'Integer' is not Valid'. Meanwhile the ACP window and the AutoSlew window agree on the values for RA, Dec, etc. If I close the Visual Basic window the values disappear from the ACP window and there is no telescope connection. ASCOM 6 sp1 installed along with new 64bit drivers for everything.

AutoSlew worked fine with ACP 6 and my old pc.

Any joy here? I am also posting this on ASA's Yahoo site.

Bill Martin