You could instead download the official ROM from various sites,eg XDA.

Mike,
Welcome to this thread! If you are running on android ROM you need to goto the specific thread ie HD2 running on Android. Go back a few pages of this thread and you will find where to go to the Android thread.
For SMS sound, goto All Settings>Sounds & Notifications>Notifications, at Event select Message: New Message and select your ring tone.

HD2 is the best Windows phone avialable currently. Good choice

I don't think you need to send it for repair. If you flash a few times without performing Task29 such random freezing will occur. Perform Task 29 and the problem will go away.

SIS Distribution Sdn Bhd the HTC Malaysian distributor

What phone can be better than the HD2?
Mine is almost 2 years old and I can't find a better phone. It is probably the longest duration I had for a same model. Any recommendation?

I recently bought a used HD2, my second HD2, to flash Win7.5 Mango. I managed to get it working with full Market Place support. Tried it for a few days, meanwhile I reflashed my first HD2 with Win 6.5 with my preferred Dutty cooked ROM. Have been comparing the two. Win 6.5 cooked ROM wins hand down

No HD7. Not so keen as Win7 applications are quite limited and not much leeway to customize as Win6.5.
Thanks again pal for the help earlier.