Help needed - frequent crashes on newly bought htc touch pro

[chirita]

Dear Friends,

Just bought a couple of weeks ago an htc touch pro that I am (trying to) use
in Romania - carrier Orange Romania GSM. I would lie if I was to say that I am satisfied with how the device performs as it crashes ferquently & unexpectedly HOWEVER since I am an (old) business user I would like to request professional advice from specialists like yourselves. Just to make a quick list of the most common issues besides the crashes:
* sometimes cannot answer the phone * device slow * cannot use yahoo go properly as screen is not refreshed * very poor ear & speaker volume * battery life max 1 day with moderate use * touch flow 3 d sometimes does not load on reboot * etc.

I have tried soft/hard resets several times with no success. I suspect that this may be an issue rekated to the software version that is installed on the phone so please see below the Device Info data:
ROM ver 1.90.401.1 WWE
ROM date 08/01/08
Radio ver 1.02.25.19
Protocol ver 52.33.25.17U

Any advice/guidance will be greatly appreciated

Thanks in advance

Chirita Mihai