[garymck (Gary)]

Hi
badly need some help!

I am unable to use my qhy5 (which was reflashed to a qguider after early driver problems several years ago soon after I bought it).

Have changed Windows versions with a new windows install (complete install, not upgrade). I was previously using 32 bit Windows Vista 32, but have just switched to using Windows 7 Ultimate 64 bit.

Have installed ascom and latest ascom updates.

Have installed latest QHY driver for QHY5 and also firm update.

Driver appears to install correctly.

In PHD select ASCOM V5 Camera, cmos guider QHY5 , camera appears to connect, but as soon as I try to loop exposures I get get error message

"failed with error 121: the semaphore timeout period has expired"

The only way to kill PHD is via task manager. Same thing happens in Maxim 5.12 except that Maxim can be killed without resorting to task manager.

I might add that my QHY8 is working perfectly in the same system....... Have posted on QHYCCD forums, but not had an answer.....

Help MUCH appreciated as am not able to go back to Vista as Laptop has to run Win 7 64 for a work related program.....

cheers
Gary