PPCGeeks - Phone Frezzing

This problem started to happen after the ROM upgrade. once in a while during the day the phone just stops responding to key commands and it just doesn't work. some times it will last 1 min and sometime it never comes back. this is the 3rd phone i had with the same problem. I searched the forum to see if anyone is having the same problem but didn't see anything. is anyone having the same problems. other thing I'm getting the MSG do you want to send to MS offend. I think there is something wrong with the memory on the phone. it makes me feel like I'm running Win 95. Please help is there a solution to this. i don't have any software installed but google maps