Missed calls with Rogers or Fido with HTC S710?

[SharpShark]

Okay... tested 4 radio firmwares and still missing calls with the HTC S710 with a good signal. I even tried the Mona Lisa firmware. Does the HTC S710 have some known radio issues or/and it does have some compatibility issues with the Rogers (Fido uses Rogers network) network?

[h4waii]

I think it's a Windows Mobile thing, to be honest. I experienced this a few times with my Vox on Rogers. I would simply get a voicemail out of nowhere suddenly, though I had my phone in my hand and apparently the person just called.