HTC Sync won't stay connected
I am having difficulty upgrading my Aria. HTC Sync 3.0 is installed on my PC (WinXP) but it won't either make or hold connection to my PC. I get a message that says there is no phone connected and that I should unplug the USB for 10 seconds and then plug it back in. If it gets recognized at all, it's soon lost.
I have used the USB cable with phone set for charge only, also have copied files from my SD card to comp with phone set as disk drive without problems. Could something else be set wrong on the phone, or even on computer that is preventing me from using Sync?
Any help greatly appreciated.
Thanks in advance